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Did you ever figure out your water pressure issue with your buffer tank?

A buffer tank is not needed for a 4gpm machine. A faucet normally yields 8gmp

I use a direct drive no issues if you use a buffer tank it’s a must to use a 12v 3-5 gpm pump to support that pressure washer otherwise u can burn pump but no issues

$150 bucks on 5 gpm pump on buffer tank outlet,no need to worry about flow or cavitation.

The only work around using a buffer tank is for the tank to be slightly higher than the inlet on the pressure washer if you dont have the minimum GPM that the pressure washer is rated for it will cavitate and pulsate because the pressure washer is not getting enough water flow. The electric pump needs to be at least 60-70 psi and about 20% more GPM than the pressure washer is rated for.

Very helpful thank you

Not all pumps can suck from a buffer tank, most pumps are designed to have a garden hose connected directly to the pressure washer. For a direct drive system you need either a belt or gear reduction drive system. I agree with your vent, but if you are depending on water pressure cuz your tank is full, as your tank empties you would eventually lose pressure

Usually u should get 2inch inlet barb and run 2 inch hose from buffer to pw

The noise may be that the pump isn’t getting a steady flow of water like it would from the tap. If your tote was full of water it would flow a lot better also. If your pressure washer was lower than the tank it would flow better.

Since this video was 2 years ago I'm sure you've already figured out your problems... but from what I could see... your tank wasn't vented and your water line was to low. You don't have to raise the tank as long as the water line is higher than your pump. The tank has to be vented while your using it so the water can flow freely... I've been using a buffer tank for over a year now with no issues and I get just over 4 gpm flow. The only time you need an external pump to feed the pressure washer is if you over 4 gpm. Hope that helps!

Yo I need more videos! How did the pressure washer trailer work out!? This looks clean!

I have a direct drive also yes it can be done but you might fall in the risk of burning your pump because u have to hold trigger - but now they sell these unloaded valves that will not have to hold gun constantly and can pour the released water in buffer tank with no issues

hows the pump holding so far?

You know its serious when you have a nightmare of running your pressure washer for a long time without turning on the water.

So just run a 12v pump to feed the buffer to the washer

About 2 inches below that second bar from the bottom is 100 gallons and that weighs around 800 lbs. Ive moved these fully loaded with a fork lift and they can get to around 2300 lbs.

Hello brother if running water supply to pressure washer no need of 12 volt water pump

Irene is our predator 420 CC and it's worked

My direct drive pump won't feed from a tank like this, wish it would

U just need to put the pressure washer lower,

Get a belt driven and you can run it how u want with no issues so replace your machine and you will be ok

I think need it a bypass and secund pomp broth with battery. But if work fine like that. Cool. You cat pomp anyway those the Best

Have you had any problems with the plumbing pressure washer set up?👍

Go make some money now.

Take your PW off the cart and get the pump lower..it will work much better.Glad i got a belt.Looks like its working pretty damn good to me.

This is the best. You can get better pressure washer for less of a price on wheels.

How is that set up going after the buffer tank? Those 3 red valves. Can you send me the links? Thanks! Cheers from Texas!

What size pump are you using?is it a 4GPM pressure washer

What dod you end up doing? Did you raise the hieght of the buffer tank?

That color makes the reels look like plastic reels from walmart.

Thanks bro really simple and went over everything properly. Appreciated !

What’s worked the best for you on getting jobs, im in the process of starting a company and building a trailer like yours

Replace that 275g monstrosity with a 50-70 gallon tank and mount it higher than your washer with a 1" feed line, you'll save yourself hauling that thing around and it will gravity feed your washer better.

Why aren't you feeding the buffer tank from the top? Keep enough water in it and a larger supply line to the machine and the water pressure in the tank should feed it fine

That little noise is pump cavitation, it will ruin that pump!!!

The only reason you need a buffer tank on a pump that small is just to send water from the unloader to keep the pump cool when not using the gun, you can even just let it run on the ground.

Tie into a line feeding to a float valve and double feed the pump, you will always have a good amount of pressure feeding the pump, when the tank gets full the supply water will feed the pump 100%.

Dual feed the pump with 1” and use a bypass back to the buffer tank from the unloader and you will be fine.

I've got cheap Chinese pumps and they suck water no problems. I also use a second unloader on an AR RSV40 pump. But that's getting upgraded

Very descriptive

Glad to see someone perform that task. I will be using that same set up with the same Honda 4200 PSI 4.0 GPM pressure washer but was not sure if it would work, I am just starting to build my system thanks a lot. I will put water in my buffer tank then let it flow into a 5-gallon bucket and see if it will flow 4 - 5 GPM

4gpm machine most cases needs to be gravity fed, so you have to fill that tank atleast halfway up and it should be plumbed down towards your inflow

Try a 1in feed line

Funny to come across this video. Earlier today I tried the same thing with a 2.5 GPM /3000 psi. It worked fine but it felt just slightly light in the volume. But even still my surface cleaner was working great. The surface cleaner is a better indicator of a proper amount of water volume and pressure than a wand with a yellow tip on it. I tasted it with only about 10 gallons of water in the tank with a 75ft garden hose feeding the pump. If I tested it with 55 to 100 gallons of water and a 5ft hose to the pump, I would probably not be able to tell the difference between gravity fed and house fed. I believe that any pump that is pushing water out one end is automatically creating a vacuum on the other end. A 12 volt can start off dry and suck up water, just like a wet vac. But my 2.5 GPM pressure washer most likely needs to first have water fed to it, then as it pushes water out one end it creates a vacuum and continues to draw water in and through the pump. Can a belt driven pump start off dry and suck water up like a 12 volt can?

Some of the direct drives may pull some water, but some won’t. Either pump water from the buffer or swap to a gear drive pump.

I just have the same problem till a figure out! The downstream injector does that suck air into the lines my fix! Was I put it into a rinse mode! And boom!!!

Take an Allen wrench stick it in the top of the 5 gallon a minute pump pull the pressure washer trigger turn the Allen wrench till it stops posing

Hi, what hose reels are you using? Thanks

Is that a goat in the background?

Your chemical injector is sucking air, that’s why it’s pulsating with ball valve