how much head will this pump push, being used as a return pump?
1239602
It will pump up to 69 inches, but that's where the flow zero's out. Figure you want a five fold return of water to the tank. A fifty gallon tank should have a pump capable of moving 250 gallons per hour at the height of the return spigot. Most pump manufacturers will have a flow chart on their websites
2118005
That's a complex question with no definitive answer or recommendation. The pump will move a lot of water over short distances but the back pressure from a fire hose, length of run from the water source and rise of the elevation all contribute obstacles. Your best course of action would be to get the pump specs and visit the nearest fire department or engineering offices and see if one of the veterans can calculate head pressure for you under your circumstances. You need to know what it will and won't do before you commit to a purchase. What you're establishing is essentially a "dry" hydrant where you throw the intake in the lake if cirumstances arise. I'd ask the question hypothetically and ask for a hypothetical answer as liability issues may scare off a definitive response.
798743
It is a very small, weak little pump. It is great for some applications, but will fall short for anything requiring much flow or lift. I believe it maxed out at 3'-4', but I only needed 18" of lift for my project so it was fine for my needs. Don't forget to put some sort of protection on it to prevent it from running dry, it will kill it.
988706
Doubtful, this will only deliver 3-6lbs of pressure, it isn't a high volume pump.
81460
I think what you need to consider is a pump's Head Rating. And, Head Pressure. You can get a much more powerful pump for not that much more money. I wouldn't suggest this for much other than say powering a media reactor.
1731985
From what I have been able to look up, 11 FT 8" may be the max head pressure for this pump so I don't think it will work for your application.
2092034
I dont know. I gave up. It is about 1/20th of a regular pump, so 20x as much I'd say.
1301870
It really depends on how much flow you're looking to put though the sump. I can say that I have one of these pumps for the return on my 90 gal. It's quiet and pushes a decent amount of flow over two 3/4 lines. Hope this helps.
1552005
This is probably not the best choice. For each 33' of head (vertical lift of water plus restrictions in discharge line) the pump will have to overcome ~15PSI (14.7). The pump has ~ 55 PSI. Additionally these diaphragm pumps don't like any trash that may be sucked up from the lake water. Even if you put a filter, the restriction on the suction side may be too much to overcome. Technically speaking the pump should do it, but it is probably not the best choice. Additionally the pump is for intermittent use, so if you plan on pumping for a while the pump will overheat and shut off. - Good Luck
759884
I would look for a biiger pump. It mifht do it but the flow wont be very strong
724868
I don't know for sure and have no way of testing it for you. It is a very powerful pump and I am guessing it could push air that far down.
765680
At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a much more reliable type of main valve. At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a... » Read More At 40 psi and a 10' head (typical for a sump pump), this unit will move about 560 gph. The smallest Basepump (RB 750) will move 750 gph of sump water at the same pressure. I initially looked at this unit, but went with the Basepump HB 1000 instead as it will move 1000 gph and is of a higher quality. Additionally, the reviews for the Liberty frequently mention problems with the float valve. The float system on the Basepump does not have the same issues and is extremely well made. Also, it is not operating against the full flow of motive water; it simply acts as a pilot system to actuate a much more reliable type of main valve. « Show Less
2195692
I pushed it uphill about 150 feet with no issue. Please remember - this is a low pressure pump so if you are going to be just moving water, it is great. If you are looking for moving and pressure, you will not get.
1877023
Mine pumps seven feet but I had to move the check valve to three feet off the floor. I think the weight of the water on the valve at one foot was to much for the pump to push the valve open again. Plan on buying a check valve, the one that comes with it is junk. Overall it's a good pump.
1169776
I run this pump in 1 HP model in a lake floated on its side. In its third year and working fine. If the water is relatively clean, it would help. I push the water 150 yds sideways and 75 ft up a hill.
1831502
I believe you will not be satisfied with this pump in that application. It move a fairly high volume of water a low pressure on an almost level plane, such as from the bilge of a small boat. Pumping 7 feet elevation will really tax its capacity.
1194432
This pump is not enough for return off 100g tank, I use for 46G tank and it is noisy and flow not constant to keep water level I prefer to use mag 7 for 100 gal tank.