Harbor Freight 3" Trash Pump Setup and Review
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- เผยแพร่เมื่อ 16 ก.ย. 2024
- Harbor Freight 3" Trash Pump Setup and Review
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I think I've run enough of these pumps now that I'm qualified to give this review. I've been running this exact pump for nearly a year now, and haven't had any issues with the bolts working loose. She is due for an oil change though!
I think this is pump #7 over the course of about 3.5 years. The ones that have failed really did so pretty quickly, so I was able to use the warranty, or even the 90 day free replacement. To be fair also, for a while I was running 2 at a time, so it's not like each one only last 6 mos. Truthfully I believe they are good pumps, just poorly assembled.
Planning on getting one of these. So glad I found this video and saw the part of adding locktite. Great info man. Will save a ton of grief. Thanks man!!
They’re not bad. But seems like a crap shoot. I’ll have one last two years and then have another one crap out after 6 mos.
Thanks for watching! Please like share and subscribe!
My nephew used one that my dad owned to drain a swimming pool with. It pumped it out fine of course but he neglected to rinse the pump itself out. The chlorine that sat in that pump corroded horribly and seized the pump up, basically ruined it. always rinse with clean water after usage to extend the life. just FYI
That's a good tip, thanks for sharing! I just use mine for pumping pond water, so no harsh chemicals there. I do have the risk of sand though.
after watching I bought a 2" pump from Harbor Freight........ I kept it running while refueling. Ran for 15 hrs straight. Changed oil. Next weekend Ran again....that little thing is a beast. thanks for posting big dawg
Yeah getting the fitting and proper hose is a little difficult, specialty place only. I used mine about 8 or 10 times and it flooded, like over the top flood. I let it sit for about 4 months without opening up. I opened it up this last weekend and emptied the muddy oil and put some three fill ups of old gasoline in the oil and shook it and dumped it in a bucket. Each time I also cycled the gasoline with the spark in and out flushing the spark hole with a big spray of wd40 which stands for water displacement. I was going to dremel wire the spark but after I wiped it, it was still new. I started the project a month ago dumping the gasoline by holding the pump upside down over a bucket with help. I rolled a long bunch of paper towels to clean the residual fuel water that wouldnt dump. It tool about 10 pulls to catch a spark and compression. Two more pulls and it started. It starts every time and it will run nicely on complete low idle where it never would before. I love the machine. It is amazing what it does for me. Makes life possible. Moves a million gallons a day if you need it to, do the math. X gallons a minute, 3600 minutes in an hour, 24 in a day. It's a million something a day. But I haven't used it hard like that. Seems like this video has the answer. I guess he is bullet proofing the pump.
I don’t recall that I was bullet proofing it, just checking one issue that I’ve had consistent problems with before.
My experience with the actual pump itself has been good. The motors can be a little touchy. Brand new they start great and run great. Lately I’ve had several issues with the paper air filters imploding and plugging up the carbs. About to replace my second one. I beat these pumps up a good bit, so I’m not too upset with issues like that. If I’d put them up and store them proper when not in use I’d certainly have less issues. Instead I leave them sitting outside 365 days a year. I run them till the break and then fix or replace them.
I’m happy you got your flooded pump running again. I have a video of going through one after it got partially submerged. I’ve never fully sunk one.
Just bought this and it starts and goes good but for some reason won’t suction water. I am
Wondering g what I am doing wrong?
Yoh likely have an air leak. Check all your gaskets and seals. If you used thread on adapters like me, then use thread tape. And of course make sure you prime it for the first use. Once primed and with all seals in place they work fine. Make sure if any of your suction hoses have rubber gaskets that they are are all in place. If you’re pumping out of a muddy basin like a pond or ditch, and don’t have the screen/can on the bottom of the suction hose, sometimes it can pull itself down in the soft mud and get buried and blocked off. Good luck, I’m sure you’ll figure it out. Air leaks are the enemy for sure!
The bolts mounting pump to motor can be loose and leak. Also where the main crankshaft comes into the pump there is gasket.
There is a ring gasket where the pump case halves meet that can leak if the T bolts aren’t tight.
Hose adapters or hose gaskets can leak
The suction hose itself can have pinholes that leak air.
Try running your discharge hose up hill or tie the end up to a tree so it’s above the pump. Back-prime the pump through the hose and start it. If you see the discharge hose burping air through the water then you know you’re sucking air in somewhere. I used to run two of these pumps at the same time and would tie the hoses up on the same tree so if one died and the other kept running it would keep the dead one primed while I got it gassed and fired up again 😎
I can't get my pump primed and pumping. I have hose barb fittings that
need hose clamps which have a rubber O ring seal and didn't use pipe
tape??? Yet it won't pump start pumping! I must have an air leak
somewhere.
Check your main gasket on the pump body where the 6 T bolts hold it together. And also check the 4 bolts that hold pump to the motor. I’ve had it leak in both these spots. Also if you are trying to push up a big hill make sure you aren’t air locked. If the discharge hose has too much water or kinks restricting flow sometimes the pump can’t push the slug of air out of the pump body enough to pull a prime. Disconnect all hoses and make sure they’re clear of water/mud. Then start over on the priming process. They can be finicky but usually as long as it’s not sucking air they’re fine. Also check your suction hose for holes/leaks at the joints.
I have a hard time getting any suction, I have to put the pump on the beach half in the water before it will prime. 20 feet up the beach where i want to keep it is only a 3 foot rise. have you had that problem before?
You have a significant air leak somewhere. Use thread tape on the connections. Check the seal in the pump housing, the seal between pump and motor, and that mounting bolts are all tight. Check that suction hose doesn’t have pinholes
How often do you change oil if using everyday running it jus for 30mins 15mins apart
I have no idea. Honestly I don’t think any of mine ever lasted long enough to get an oil change 🤣
@@TomBrueggen hmm got to buy more quality products
I’d do every 10 hours use
Any results from your attempts to use a small diameter hose/nozzle for fire fighting?
I would like to know if this pump will work for that.
I thought I made a video testing it out. I’ve never had to actually use it to fight a fire, but used it to water my orchard as a test and was kicking water nearly 100’
@@TomBrueggen , thanks very much, I appreciate the response!
They make great pumps.. I have a few myself.. One of them has taken so much abuse and its still kicking
These predators are tanks if you maintain em.
Did you have to rebuild the fucker after opening it like this guy?? I can't handle all this tweaky tune-up stuff
@@Purplexi Oh no man.. mine was just fine.. And fires up on the 2nd pull.. Although I do have the older blue ones, And when I bought mine they had these on the floor also.. They were more money at the time.. I am gonna be buying one soon because the red ones are full trash pumps... Even though I still run trash through my blue ones.. Lol.. nothing bigger than a 1/2 inch.. I use my 1-inch one last week and I haven't ran it any in over a year and it fired up on the 2nd pull.. and one more thing.. if you have an Agri supply near you then I would buy the hoses from them, because they're extremely flexible and cheap
I’m not doing this crap I’m running it ! Sending it
You stressed the importance of torque, yet you didn’t use a torque wrench. And when you replaced the impeller cover, you didn’t follow the correct bolt-tightening pattern - just as with changing a tire. Instead, you tightened each bolt clock-wise.
Yep, that’s how I roll.
Enjoy your videos! From ireland☘
I even pumped sand with water with such a motor pump. You can pick up sand from the bottom of the lake and lay it on the shore. But I lose the right to warranty repair of the motor pump, but this does not mean anything. The resource of this motor pump is enough for up to 500 cubic meters of sand and even more. It pays for the cost of the motor pump
I have been interested if this would work I have about a .75 acre pond very mucky and sandy on the bottom. I also have a lot of low spots or even a part of the pond I would like filled. You think instead of paying $300 a truckload of sand just make my pond cleaner And get fill at the same time?
@@anthony4742 Such a motor pump, as in the video, can be raised to 2-5 cubic meters of sand per hour. and put sand on the shore. Real performance depends on the type of soil, the presence of large debris, the length of the hose. But you need another motor pump for clean water, which will loosen the bottom. The cost of raised 1 cubic meter of soil costs about $ 10.
Hmmm I have a pressure washer and a small boat....I might just have to combine them both as well as one of these pumps . Rig the pump hose and the pressure washer up to an pole and use it like a mop on the pond....my only worry would be all that agitation causing a fish kill .
Also 2-5 cubic meters is this for the $399 or $899 harbor freight pump
@@anthony4742 On a fairly large pond, the fish have somewhere to swim. On small ponds 10 by 10 meters. fish are caught. and after cleaning again run
Hate to be in the middle of a fire and have this thing crap itself.
Likely. Let’s hope it never is needed
Liked and subscribed. Great vid dude, thank you for the info.
Cool, glad it helped you! These little pumps give me fits sometimes but I think I’ve just about figured out their quirks!
FYI, too much oil blows the seals in the engine.
Indeed! Good reminder!
Got a question for you brother. I got the same pump from harbor freight but in 2 inch. Put oil in primed it up and ran fine but got no water coming out. They sent me another and I’m having the same problem. Any ideas?
Maybe a silly reply question, but are your hoses backwards. Suction goes on bottom, discharge on top. Also, make sure you have proper non-collapsible hose on suction side. And make sure you fittings on the suction side and your hose doesn’t have any air leaks. If it sucks air anywhere above the fluid level it will have a very hard time getting a prime. Did you put the can on the suction hose end? If not it can suck down in the mud and block itself off.
How did it end up working out after the fixes?
I owned 7 of these pumps over the years. They are quite simple, but not built to last.
Tom Brueggen ? Trust me, that blue lock tite will hold for years as long as you let it dry. I have a 80s model Buick Regal that has to have blue lock tite place on the bolts that hold the pully.
Yeah I’m not worried about Loctite letting me down 😁
Do you happen to know the PSI on that pump? Because it's not listed anywhere.. The older model is 42 PSI And the older 1 inch is 45 PSI.. The 1 inch actually surprised me with the power that it has for a cheap pump.. I use them for my gold highbankers
theBald1 I don’t know the psi but if you look up the manual online it has a performance curve. I think it shows a max head height (the point at which flow rate is 0). Multiply that height by .433 (psi/ft) and you have your max pressure. The 3” pump isn’t designed for pressure. It’s meant to move high volume at low pressure. If you want high pressure at low volume then you’d look for a reciprocating pump like on a pressure washer.
theBald1 if you need to lift water higher than the max height on the curve then you can set two pumps in series. If you notice in some of my other videos, I set the pump down in the pond and it’s lifting and effective 20’ or more (figuring on kinks in the line as en effective footage). And I notice this on the performance. They don’t pump the max rated ~15,000 gph. If you have to lift higher than the max height you could run two pumps in series. The first one feeds the second one. This shouldn’t cause any sort of issue of too high pressure as excess flow rate will just move through the upper pump. I’ve never done that, but it could be plumbed in that manner. Just figure each pump as being able to lift that max height. Wanna go 100’ vertical? Maybe need 3 pumps, for example.
Tom Brueggen I use a short intake hose with very little lift.. I need a lot of PSI for what I'm using it for. A gold highbanker needs PSI and also a decent water flow.. I'm using the 2 inch old style pump they had like 2 years ago.. It has 42 PSI
theBald1 well I’m not really familiar with high banking, or any gold mining for that matter (other than what I see on TV) but it sounds like to me volume (flow rate) is your friend. If you want the effect of high pressure to blast material, reduce the ID of your nozzle. I’m sure you know the principal but I’ll reiterate for others. Flow rate is the same. But since your moving the same flow rate through less cross sectional area, the velocity of the water is higher. The pressure is actually lower, essentially 0 once it exits the nozzle, but the impact force of the water moving at a higher velocity is often sensed as pressure. Mass x velocity is force right? Force in pounds. Pounds divided by area is pressure. So a water droplet moving very quickly hitting a small area does impart an effective instantaneous pressure. But it’s velocity that’s driving the equation here.
Ha! I’m not trying to school you I promise. More recounting my own fluid dynamics lessons. I am an engineer. I like finding real world examples of nerdy engineer things!
theBald1 actually now that you mention it, stay tuned. I actually just got the pieces to put fire hose nozzles on this pump so I can jet water further to control a large brush pile fire. This pump can move a lot of water. But at low velocity through a 3” hose. We’ll test the limits by reducing the nozzle down to about 3/4-1” and see how far we can jet the water. Hopefully a good distance, because this fire will be HOT!
Would a trash pump work for pulling out muck in a swimming area?
Yes! It’s designed to move sludge and debris. Depending on the size you get, my 3” pump says it can pass 1” solids. I pump soupy mud with it from time to time. If you have leaves and pine needs like debris those may blind off the can on the end of the hose, but as far as sludge and muck it should be fine
@@TomBrueggen Thank you!
@@TomBrueggen thank you...I will investigate further for purchase
Having to much oil is just as bad as not having any in it at all
Thanks for watching!
so where did you git your male to female fittings
bryan tremmel ordered them online. Don’t recall where. If you’re around Houston I found them decently priced at Wilco Supply. And I think they have a website to order online.
Every predator I’ve had has blots that were over torqued.
How much did you pay for the pump ?
I don’t remember. I think it came out to $340 or so after taxes. They don’t let you use the 20% off coupon and I don’t buy the warranty.
u carey a gun?
Would appear that way.
Slight printing visible at 18:42 😂
Probably in case he wants to shoot something.
lol, i carry my 44mag everywhere i go. if customer doesnt like it, their not a customer of mine.
Yeah I carry a gun, some people carry pocket knives some carry guns. It ain't that big a deal if a guy where's a gun and it's visible. I remember a time if you hunted you carried the gun in the back window of the pick up truck, and nobody lifted an eyelash about it,. But it seems now we have thin skinned people that go in to over drive shock when they see some one with a gun. It's like anything else a gun to me is just another tool.
Could have cut out the unboxing. (those are about the most useless and pointless videos out there. Rest of vid was cool.)
I agree. Honestly just trying to capitalize on the trend of unboxing vids.
@@TomBrueggen So does that mean you are gonna start eating Tide Pods? (sorry, couldn't resist the joke)
Eddie Foy ha! No I’m not ruhtarded. But if “unboxing” will make more people click the video, then who am I to turn down the revenue potential? (Thanks for your contribution :) ) It blows my mind that people can make millions opening toys on TH-cam and I’m scratching for pennies trying to put out real world useful information.