Too many negatives happening to focus just on that, one must keep moving forward no matter what, today im going to pick up electrical tubing i need for the foundation of the shed, the governor yesterday put in tougher restrictions with a threat of a full lockdown ,so I'm focusing on getting crucial materials i need to move forward.
The pressure tank does 2 important things. It maximizes the life of your pump, and it provides a consistent water supply. Without the tank, you may often get sputtering at the faucets.. Amazing you can do this with a 12volt car or deep cycle battery. This is the best home backup water system at low cost I could find.
@charlesharris2352 this pump works great, my mega pump works better, it works for all types of applications, including perfect use with float valves, I have a full instructional video.
I am trying to get water pressure using rainwater pumping into our cabin. Currently I just have an RV pump using clips on a 12v battery. It pushes water through the lines but has minimal pressure. I think your video is the way to go.
It depends on how many gallons per minute you need, the pump in this video pumps 3 gallons per minute...if you pump over 3 gallons, pressure goes down. My home is 2 levels using 2 pumps, one is a 7gpm and the second is on my roof pumping 5.3gpm, giving me a total of 12.3 gpm...if I go over that, my pressure drops, this is a example of how Gallons per minute works, just incase you want to increase gpm.
I once connected brass faucet to a pvc pipe that was connected to a pressurized irrigation system. The pvc thread did not endure the pressure and I ended with $200 water bill.
The pump comes with a pressure switch, if your pumping to a cistern with a float valve, then I recommend a external regular pressure switch, the diaphragm switch on the pump has problems with float valve operations .
@@teammj2855 Diaphragm switch on the pump has a small hex key hole, turn clockwise twice to increase pressure on your 12v pump, pump pressure must be higher than external pressure switch, if pump is 45psi, external pressure switch must be 45 psi, some external switches already come set at 45 psi and 60 psi, get 45psi if you can't find 45 psi , get 60 psi and lower pressure, its going to be the screw with the spring on external switch...my 10,000 gallon with 12v pumping system video illustrates a pump with external switch.
using a pressure tank reduce the pump work? I spoke to a dealer who told me that it is not suitable for irrigation because it is not designed for continuous use, this pressure tank solve this problem? how much liter should be this pressure tank?
I don't use my pumps for irrigation, but yes accumulation tank helps pump not run all the time if water isn't constantly on, 12 v pumps come in different gallon per minute sizes, if your going to use 3 gallons per minute in consumption, but don't want to loose pressure, you use a 5.3 gallon per minute pump or even better a 7gpm pump, go to my first video, I have a 7gpm pump with a 20 gallon accumulation tank, 12v pumps can be used for irrigation, but you need the right size.
@@viperblck1 you need a bigger pump, that's a lot of work for a 5.5 seaflo, but a 7gpm pump could probably handle that, but I'm not there to see what you want to do or how much water you want to move, I had the same dilemma when I was building my off grid rain harvesting system for my home, my solution was multiple pumps...if your moving a lot of water, you are in a area with no power, you want to use solar power without breaking the bank, I would build a system with multiple pumps, build a 12v system with three 320w solar panels a decent charge controller and no inverter because you will run directly from the battery, it all comes down to how much water your moving for how long.
@@MosaicHomestead no, through irrigation pipe (maybe 20-26 mm ), I have a 10,000-litre tank of water and I have to irrigate some olive trees that are located in a piece of land 100 meters away with a difference in height of about 4-5 meters
These pumps work great and consume very little power if your running off solar, these pumps are the ones used in bunkers, im using this pump right now in the shed, in my first compost video, water coming out of the hose is rain water collected by the sheds cistern and pumped with this pump,...Keep this in mind, if you get a 3 gallon per minute pump, you are limited to 3 gpm, if you exceed 3gpm, pressure drops, my recommendation is get a 5.3 or a 7.0 gpm if you want to run multiple water items like shower and flushing the toilet.
@@FinehomesofNewHampshire If it's just for that a 3gpm will work fine, if adding a toilet a 5.3 gpm is recommended...Your going to be surprised how well these pumps work.
From pump to accumulation tank = No, check valve is only needed where you don't want water to return or simply move backwards, these pumps literally have them built in.
Home Depot, it's a 6 gallon water works, here they stopped selling this accumulation tank separately, I have a updated video called build a mega pump, it's a more advanced video, but pump will work even with float valve applications.
Hi there🖐 I have a 42 series Seaflo 55psi and I’m off grid. I can understand that your saving power by using the pressure tank. But my question is: If your pumping into the pressure tank that only holds 18psi? Aren’t you loosing pressure from the original Seaflo pumps capacity?..I ask this because I want to set up my pump to have enough pressure for my sinks and shower without loosing pressure through a pressure tank. Is it possible to have both pump and pressure tank, so I can use less power (using one solar panel) and at the same time not loose the pressure needed for my set up?..Thanks for the video. I’m just learning about this.🇦🇺🤠👍
Seaflo manufacturers are the ones recommending this ,Im actually using this pump right now, This pump is a 45psi 3 gallon per minute pump....pressure is perfect as long as I don't use past 3 gallons per minute, if you go over 3 gallons per minute, pressure drops...in this case a higher gallon per minute pump is needed, I run 2 pumps in my off grid application, a 7gpm and a 5,3 gpm at 60 psi giving me a total of 12.3 gpm...If I open enough faucets using over 12,3 gpm, my pressure drops to a unusable pressure, I hope this answers your question without getting too technical, my first video shows a lot on how I run off grid, including it shows both pumps.
@@rustywoodpecker8191 OH, for your solar question, the pump has a label that shows how many amps it runs on, The bigger the pump, the more amps it uses, Solar panel should provide enough amps to run and charge batteries at the same time, if I have a 8 amp pump and a 6 amp solar panel, your pump will extract the 2 extra amps from the battery, thats OK during the day, but for the night time you need a battery that won't drain, there are amp hour calculations for this, my suggestion is going 30% over this calculation.
I'm using a timer, vacuum attachment for no back flow, a filter, a ez flo fertigation system and from there it will go to 1/2 inch copper that will be plumbed in to a block wall with a hose faucet for each bed. From there it goes to 1/2 inch plastic tubing that reduces to 1/4 inch drip to every plant, the beds will be covered using panda 🐼 poly film to reflect solar light back to the plant and prevent weeds from growing, its a experimental garden so its not going to be big, if results are good, I'll expand to a roof garden.
I would love to buy this model tank but don;t see anything comparable. Everything on Amazon is vertical, but for the space I have I would like the exact tank you show in this video. Any way you have a link on where I can buy?
These tanks are sold in home depot or Lowes, but depending on what you want to do, a vertical would work as well, I have a 7 gpm seaflow pump on a 20 gallon accumulation tank, these pumps can be made bigger also using 12v...Its in my very first video with the 10, 000 gallon storage rain harvesting video...I'm actually using this pump in the video in my shed with a portable washing machine, pump and machine work off of 3 solar panels and 3 RV batteries...Super efficient.
Prepper shed cistern and 12v pumping system is the video, the pump is turned on and tested at the end of the video...pressure is constant as long as the gallon per minute is not exceeded, if you need more than 3 gallons per minute, a bigger pump is needed.
If your building a 48v system and you want to add a 12v pump, Get a 60amp buck transformer at 12v to bring down volts to 12 but with 60 amps that could run a pump of 7 GPM (gallons per minute)...the more GPM the stronger the pump...I run my home on rain water.
@@Beluel Most likely a pump for chemical applications, try a TH-cam search for your application, I can't recommend my pump because of manufacturer application of seaflo pump.
@@XRPHordz The job of the Accumulation tank is extend the life of the pump, The pump doesn't run every time the water is on, Why 18 pounds?...The 12v pump is not as powerful as a AC pump, so the 12v pump won't have the power / pressure to fill up the Accumulation tank, thats why 18 pounds of pressure in the Accumulation tank... the pump in this video is the pump being used in my prepper shed, it works perfect, I have a video up on the pump working in my shed, in the future this pump will run a small sink and a portable washing machine.
Hi Luis we recently acquired a hot water pressure washer that puts out 11lpm It will stay in the van the all time but in order to do that we need a pump that delivers from a baffled tank to the pressure washer,on the manual it says I we where using tap water we need 30l/min.max 1Mpa Is there any pump that is able to do this?and if so can't we hook it to a pressure tank like your build? Thank U
A 5.3 gpm should cover your 11lpm, you can install this pump on a 20 gallon pressure accumulation tank, but if you want a mega 12v super pump, You can go with a 7.0gpm pump that will give you 26,49 lpm. go to my first uploaded video, the one with my 10,000 gallon water storage and 12v pumping system, there I have a 7,0 gallon pump on a 20 gallon accumulation tank...That might be what your looking for, this pump and a secondary 5.3 gpm pump runs my home, multiple pumps increase your gpm, Example: 7 gpm + 5.3 gpm = 12.3 gpm...I can simultaneously run multiple water devices without loosing pressure as long as I don't exceed 12.3 gpm.
@user-cv7kp4oy8q No, you have to look into submersible well pumps, now I do believe there is a 12v submersible well pump for shallow wells, 64 feet isn't that deep, it might work for you, now o do believe that pump is just to extract water from the well to a tank, from tank to house is where this pump comes in, if you want to build what I believe is a better pump, that is my mega pump video.
Series 42 have intermittent duty cycle while other series have continous duty cycle. What is the difference between intermittent and continuos duty cycle ?
Continuous is meant to run continuously, intermittent is for stop and go, if you attempt going 12v, come back and let me know if it's working good, im curious to know just because of the volume of water your pumping, it might take longer to irrigate, but I believe it can work if you set up right according to your situation.
@@MosaicHomestead ok but continuos pump will never reach pressure and stop to work ? I have to add a pressure tank to let the pump stop working for sometime mantaining pressure?
@@viperblck1 For a float valve application you may have to add a pressure switch, those diaphragm switches start to click on and off when tanks are almost full, just add a regular AC pressure switch and tighten the hex nut on the diaphragm to increase diaphragm switch pressure to supercede AC pressure switch, this puts AC pressure switch in control of the pump
With a AC 120v pump at 60 psi the pressure is set at 28 psi, but the pump is 60, most likely it's torque, pump pushes water in a rubber balloon against air, pressure does not remain constant when coming out of the accumulation tank, 12v pump has less torque power, this pressure is set by manufacturer, to make it simple, less torque power, less pressure. Pressure will also not remain constant with 12v pump with accumulation tank.
Looking good amigo. I love the way you stay on mission no matter what crap is happening around you. I think that's wise.
Too many negatives happening to focus just on that, one must keep moving forward no matter what, today im going to pick up electrical tubing i need for the foundation of the shed, the governor yesterday put in tougher restrictions with a threat of a full lockdown ,so I'm focusing on getting crucial materials i need to move forward.
The pressure tank does 2 important things. It maximizes the life of your pump, and it provides a consistent water supply. Without the tank, you may often get sputtering at the faucets.. Amazing you can do this with a 12volt car or deep cycle battery. This is the best home backup water system at low cost I could find.
@charlesharris2352 this pump works great, my mega pump works better, it works for all types of applications, including perfect use with float valves, I have a full instructional video.
I am trying to get water pressure using rainwater pumping into our cabin. Currently I just have an RV pump using clips on a 12v battery. It pushes water through the lines but has minimal pressure. I think your video is the way to go.
It depends on how many gallons per minute you need, the pump in this video pumps 3 gallons per minute...if you pump over 3 gallons, pressure goes down. My home is 2 levels using 2 pumps, one is a 7gpm and the second is on my roof pumping 5.3gpm, giving me a total of 12.3 gpm...if I go over that, my pressure drops, this is a example of how Gallons per minute works, just incase you want to increase gpm.
You always do awesome work 🎉
I'm using this pump in the prepper shed, it runs with very little power, it runs my off grid washing machine very well
well done Luis! Between you and Reed I shall know all about solar in a few months!
Reed doesn't like me lol, He believes there isn't enough room on TH-cam for both of us lol...Solar is easier than most people think.
Thank you for the video! So if i have the AC pump that does 45 psi and a 2 gallon tank would i still set the tank pressure to around 30 psi?
It's technically 28 psi for a AC pump, but 30 is absolutely fine
@@MosaicHomestead thanks a lot for the reply I appreciate it!!
@@MaxF01 Feel free to ask any questions, if I can help, I will
Looks good Luis!
I just finish getting the solar thats going to power 🔋 the shed and irrigation system, you got the inside scoop lol
Just bought my pump and accumulator today
Seaflo
How many gpm and what size accumulation tank?
@@MosaicHomestead 5.5 and 2 gallon
@@FinehomesofNewHampshire Thats a prefabricated one, that's the one I started with, works very well.
@@MosaicHomestead amazon 199
I once connected brass faucet to a pvc pipe that was connected to a pressurized irrigation system. The pvc thread did not endure the pressure and I ended with $200 water bill.
It can be done but I'm not a fan of mixing materials, use Teflon when mixing materials and align the threads is very important.
14th comments and second thumbs up. Come on chaps. Show Luis some love
They know I'm not here for any praise lol...They also know I'm not here for subscribers...I'm here for pure entertainment lol
@@MosaicHomestead You will never get to sell Nutrient Source or whatever that latest 'food' in a can everyone is flogging these days. Nor will I
This is the setup I'm looking to make for my cattle will I need to add a pressure switch to mine and will I need a fuse box great video by the way
The pump comes with a pressure switch, if your pumping to a cistern with a float valve, then I recommend a external regular pressure switch, the diaphragm switch on the pump has problems with float valve operations .
@@MosaicHomestead ok cool I put in a pressure switch. if pump is 45 PSI and tank is 45psi will I be setting the pressure switch to 45 too
@@teammj2855 Diaphragm switch on the pump has a small hex key hole, turn clockwise twice to increase pressure on your 12v pump, pump pressure must be higher than external pressure switch, if pump is 45psi, external pressure switch must be 45 psi, some external switches already come set at 45 psi and 60 psi, get 45psi if you can't find 45 psi , get 60 psi and lower pressure, its going to be the screw with the spring on external switch...my 10,000 gallon with 12v pumping system video illustrates a pump with external switch.
@@teammj2855 feel free to ask as many questions, when I first started ,I was having the same problems lol
Sea flo 42 Series has 55 psi pump what size tank what pressure should I have inside
using a pressure tank reduce the pump work? I spoke to a dealer who told me that it is not suitable for irrigation because it is not designed for continuous use, this pressure tank solve this problem? how much liter should be this pressure tank?
I don't use my pumps for irrigation, but yes accumulation tank helps pump not run all the time if water isn't constantly on, 12 v pumps come in different gallon per minute sizes, if your going to use 3 gallons per minute in consumption, but don't want to loose pressure, you use a 5.3 gallon per minute pump or even better a 7gpm pump, go to my first video, I have a 7gpm pump with a 20 gallon accumulation tank, 12v pumps can be used for irrigation, but you need the right size.
@@MosaicHomestead seaflo 55 series have 5.5 GPM/60 psi. Should be good for irrigation? I have to move water to a field 5 Meters higher, 100 Meter far
@@viperblck1 you need a bigger pump, that's a lot of work for a 5.5 seaflo, but a 7gpm pump could probably handle that, but I'm not there to see what you want to do or how much water you want to move, I had the same dilemma when I was building my off grid rain harvesting system for my home, my solution was multiple pumps...if your moving a lot of water, you are in a area with no power, you want to use solar power without breaking the bank, I would build a system with multiple pumps, build a 12v system with three 320w solar panels a decent charge controller and no inverter because you will run directly from the battery, it all comes down to how much water your moving for how long.
@@viperblck1 is it for drip irrigation?
@@MosaicHomestead no, through irrigation pipe (maybe 20-26 mm ), I have a 10,000-litre tank of water and I have to irrigate some olive trees that are located in a piece of land 100 meters away with a difference in height of about 4-5 meters
Man. Exactly what I need.
These pumps work great and consume very little power if your running off solar, these pumps are the ones used in bunkers, im using this pump right now in the shed, in my first compost video, water coming out of the hose is rain water collected by the sheds cistern and pumped with this pump,...Keep this in mind, if you get a 3 gallon per minute pump, you are limited to 3 gpm, if you exceed 3gpm, pressure drops, my recommendation is get a 5.3 or a 7.0 gpm if you want to run multiple water items like shower and flushing the toilet.
@@MosaicHomestead im going to run 2 ultimately. One for shower....other for sink.
@@FinehomesofNewHampshire If it's just for that a 3gpm will work fine, if adding a toilet a 5.3 gpm is recommended...Your going to be surprised how well these pumps work.
@@MosaicHomestead No toilet until next year. Grabbing an Incolet until then.
@@MosaicHomestead Thanks bub! Super inspired by your set up and knowledge.
Great tutorial! Would a one way valve be needed in between the pump and tank?
From pump to accumulation tank = No, check valve is only needed where you don't want water to return or simply move backwards, these pumps literally have them built in.
I have the same pump from Amazon. Where did you get that accumulator tank?
Home Depot, it's a 6 gallon water works, here they stopped selling this accumulation tank separately, I have a updated video called build a mega pump, it's a more advanced video, but pump will work even with float valve applications.
Would work even better if you put a check valve before pump it would keep the lines pressurized
I mean after pump
@14Balloo I did that in my install, this is just a pump build, I built a better pump, look for 12v mega pump.
Hi there🖐
I have a 42 series Seaflo 55psi and I’m off grid. I can understand that your saving power by using the pressure tank. But my question is: If your pumping into the pressure tank that only holds 18psi? Aren’t you loosing pressure from the original Seaflo pumps capacity?..I ask this because I want to set up my pump to have enough pressure for my sinks and shower without loosing pressure through a pressure tank.
Is it possible to have both pump and pressure tank, so I can use less power (using one solar panel) and at the same time not loose the pressure needed for my set up?..Thanks for the video.
I’m just learning about this.🇦🇺🤠👍
Seaflo manufacturers are the ones recommending this ,Im actually using this pump right now, This pump is a 45psi 3 gallon per minute pump....pressure is perfect as long as I don't use past 3 gallons per minute, if you go over 3 gallons per minute, pressure drops...in this case a higher gallon per minute pump is needed, I run 2 pumps in my off grid application, a 7gpm and a 5,3 gpm at 60 psi giving me a total of 12.3 gpm...If I open enough faucets using over 12,3 gpm, my pressure drops to a unusable pressure, I hope this answers your question without getting too technical, my first video shows a lot on how I run off grid, including it shows both pumps.
If any other doubts, feel free to comment, I know the feeling of trying to get answers, Over 2 years ago, I was in the same boat lol
@@MosaicHomestead Ok, Thanks. I’ll have a look at your first video and get back to you🇦🇺👍
@@rustywoodpecker8191 OH, for your solar question, the pump has a label that shows how many amps it runs on, The bigger the pump, the more amps it uses, Solar panel should provide enough amps to run and charge batteries at the same time, if I have a 8 amp pump and a 6 amp solar panel, your pump will extract the 2 extra amps from the battery, thats OK during the day, but for the night time you need a battery that won't drain, there are amp hour calculations for this, my suggestion is going 30% over this calculation.
@@MosaicHomestead Awesome!..Thanks Buddy🇦🇺🤠👍
Most garden irrigation system are drip right at the base of the plant.
I'm using a timer, vacuum attachment for no back flow, a filter, a ez flo fertigation system and from there it will go to 1/2 inch copper that will be plumbed in to a block wall with a hose faucet for each bed. From there it goes to 1/2 inch plastic tubing that reduces to 1/4 inch drip to every plant, the beds will be covered using panda 🐼 poly film to reflect solar light back to the plant and prevent weeds from growing, its a experimental garden so its not going to be big, if results are good, I'll expand to a roof garden.
I would love to buy this model tank but don;t see anything comparable. Everything on Amazon is vertical, but for the space I have I would like the exact tank you show in this video. Any way you have a link on where I can buy?
These tanks are sold in home depot or Lowes, but depending on what you want to do, a vertical would work as well, I have a 7 gpm seaflow pump on a 20 gallon accumulation tank, these pumps can be made bigger also using 12v...Its in my very first video with the 10, 000 gallon storage rain harvesting video...I'm actually using this pump in the video in my shed with a portable washing machine, pump and machine work off of 3 solar panels and 3 RV batteries...Super efficient.
Any other questions, feel free to ask.
You have a video of the pump running. I would like to see it work.
I believe I do, this pump is working right now in my shed
Prepper shed cistern and 12v pumping system is the video, the pump is turned on and tested at the end of the video...pressure is constant as long as the gallon per minute is not exceeded, if you need more than 3 gallons per minute, a bigger pump is needed.
So considering doing this too!
If your building a 48v system and you want to add a 12v pump, Get a 60amp buck transformer at 12v to bring down volts to 12 but with 60 amps that could run a pump of 7 GPM (gallons per minute)...the more GPM the stronger the pump...I run my home on rain water.
impressive
My home has been working since July on two 12v pumps pumping rain 🌧 water...it's 100% possible to go off grid using these types of pumps.
Can I use this set up to run a Softwash system to clean homes?
This is a water pump, if your pumping plain water = yes, if your pumping soap =no
@@MosaicHomestead what kind of pump I will need for to use with bleach and/or soap ?
@@Beluel Most likely a pump for chemical applications, try a TH-cam search for your application, I can't recommend my pump because of manufacturer application of seaflo pump.
@@MosaicHomestead Thank you
@@Beluel your welcome, sorry I couldn't help more.
What is the pressure in the tank that the pump can put in? And can you attach automatic pressure switch to it?
For this pump it's 18
@@MosaicHomestead meanin max psi of your pump is only 18psi? While your pump is 45 psi?
@@XRPHordz pump psi is 45...Accumulation tank is 18 as specified by Seaflow.
@@MosaicHomestead thats weird 45psi pump but can get tank to be the same
@@XRPHordz The job of the Accumulation tank is extend the life of the pump, The pump doesn't run every time the water is on, Why 18 pounds?...The 12v pump is not as powerful as a AC pump, so the 12v pump won't have the power / pressure to fill up the Accumulation tank, thats why 18 pounds of pressure in the Accumulation tank... the pump in this video is the pump being used in my prepper shed, it works perfect, I have a video up on the pump working in my shed, in the future this pump will run a small sink and a portable washing machine.
Hi Luis we recently acquired a hot water pressure washer that puts out 11lpm
It will stay in the van the all time but in order to do that we need a pump that delivers from a baffled tank to the pressure washer,on the manual it says I we where using tap water we need 30l/min.max 1Mpa
Is there any pump that is able to do this?and if so can't we hook it to a pressure tank like your build?
Thank U
A 5.3 gpm should cover your 11lpm, you can install this pump on a 20 gallon pressure accumulation tank, but if you want a mega 12v super pump, You can go with a 7.0gpm pump that will give you 26,49 lpm. go to my first uploaded video, the one with my 10,000 gallon water storage and 12v pumping system, there I have a 7,0 gallon pump on a 20 gallon accumulation tank...That might be what your looking for, this pump and a secondary 5.3 gpm pump runs my home, multiple pumps increase your gpm, Example: 7 gpm + 5.3 gpm = 12.3 gpm...I can simultaneously run multiple water devices without loosing pressure as long as I don't exceed 12.3 gpm.
Wil lthis work on a 64 foot well
@user-cv7kp4oy8q No, you have to look into submersible well pumps, now I do believe there is a 12v submersible well pump for shallow wells, 64 feet isn't that deep, it might work for you, now o do believe that pump is just to extract water from the well to a tank, from tank to house is where this pump comes in, if you want to build what I believe is a better pump, that is my mega pump video.
Series 42 have intermittent duty cycle while other series have continous duty cycle. What is the difference between intermittent and continuos duty cycle ?
Continuous is meant to run continuously, intermittent is for stop and go, if you attempt going 12v, come back and let me know if it's working good, im curious to know just because of the volume of water your pumping, it might take longer to irrigate, but I believe it can work if you set up right according to your situation.
@@MosaicHomestead ok but continuos pump will never reach pressure and stop to work ? I have to add a pressure tank to let the pump stop working for sometime mantaining pressure?
@@viperblck1 Seaflow pumps come with what is called a diaphragm switch, this stops the pump like a pressure switch.
@@viperblck1 For a float valve application you may have to add a pressure switch, those diaphragm switches start to click on and off when tanks are almost full, just add a regular AC pressure switch and tighten the hex nut on the diaphragm to increase diaphragm switch pressure to supercede AC pressure switch, this puts AC pressure switch in control of the pump
@@MosaicHomestead pump is stopped when? Pressure switch can be tightened to increase or reduce pressure ?
How many square feet do you plan on watering?
This is just for about 3 raised beds ,approximately 120 sf
You wearing shiorts to annoy Canadians Luis? Great demo and thanks
I'm wearing shorts because I have sexy legs, the hot weather has nothing to do with it.
@@MosaicHomestead ;-)
What is the name of the Accumulator tank?
It's a water works, Home depot should have it, its a 6 gallon accumulation tank.
@@MosaicHomestead Thank you . I subscribe.
Why 18psi When the pump is 45?
With a AC 120v pump at 60 psi the pressure is set at 28 psi, but the pump is 60, most likely it's torque, pump pushes water in a rubber balloon against air, pressure does not remain constant when coming out of the accumulation tank, 12v pump has less torque power, this pressure is set by manufacturer, to make it simple, less torque power, less pressure. Pressure will also not remain constant with 12v pump with accumulation tank.