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I have a 20 gallon tank. What size water pump do I need?

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I have a 1/2 horsepower Utilitech pump hooked to a 36 gallon utilitech tank and need to know the cut in PSI


For normal house service cut-in is usually 20 psi, cut-out 40 psi. The pressure switch can usually be adjusted to 50 psi. For any more check the pump specs. Usually you can google that.

Aug 18, 2015 | Plumbing

1 Answer

Lack of fresh water


Do you have a supply pump from the tank? Is the pump bad? Is there a "bottom of tank pick up that is broken"?

May 03, 2015 | RVs

2 Answers

How does pressure tanks work


Pressure tanks do just that in a water system. They create pressure for water to flow when the water pump is on the off cycle. A manifold is plumbed into the tank from the main line coming from the well. The main water line continues to the house plumbing from the manifold. So it's line from pump to manifold - to tank, and from manifold to main into house. The manifold also has tappings for the pressure gauge and the pressure switch. The pressure tank creates water pressure. The water does not flow through the tank. Pressure tanks also have to be 'tuned' or adjusted to the low end pressure set by the pressure switch. Actually the tank pressure needs to be set 2psi below the low end pressure. Most residential water systems are set to operate between 20 -40, or 30-50 psi, which is set by the pressure switch, which in turn , turns the water pump on and off. So if a system operates between 20 and 40 psi, the pre-charged pressure of the tank should be 18 psi. Pre-charged means the tank is drained of water with the water pump OFF. The tank pressure is then checked adjusted by way of the air valve on top of the tank ( A tire gauge works). Pressure tank mainfolds are a common plumbing part.

Mar 19, 2014 | Utilitech 20-Gallon Vertical Pressure Tank...

1 Answer

What is a flow rate in aquarium water pumps?


A flow rate is the amount of gallons your water pump can push in an hour. Water pump should be able to push five times as many gallons as the of the tank. For example if you have a 20 gallons tank you'll need to use a water pump with a minimum of 100 gallons flow rate.

Aug 09, 2012 | Fish

1 Answer

I have a 55 gallon tank. What size water pump do I need?


A standard 55 gallontank needs at least 550gph of water circulation. The minimum acceptable water flow for afreshwater aquarium is 10x the tank volume per hour. For saltwater aquariums without corals, thereshould also be a 10-15x tank volume for circulation. As long as the pump you get follows theseguidelines, the itself won't matter.

May 13, 2012 | Fish

1 Answer

Just installed aqua/cleer reverse osmosis system and the water doesn't seem to be going into the holding tank, however there is water that is coming out from the tap.


Make sure all the lines are hooked up correctly. It is going to take 3-8 hours to fill a 3 gallon RO storage tank. It depends on the capacity of the membrane (IE: 14, 20, 30, 50 or 75 gpd). It also depends on the TDS of the water. Water that has high TDS 500+ppm will take longer to produce product water than TDS of 100ppm. Check the pressure in the RO tank. When empty (In a 3 gallon tank) there should be 7psi pressure. A ten gallon tank takes 10psi. If it needs air you can use a bicycle pump to add appropriate air. Make sure the tank valve is turned off when adding air.
Do not use the RO faucet for several hours to allow tank to fill up. Also you should dump the first couple tanks of RO water to make sure any carbon fines are rinsed out.
RJ

Nov 07, 2010 | Culligan Under Sink Water Filter

1 Answer

I have a 1992 Ford F150 with the 5.0L V8. What is the best way to chance the fuel pump. I have been told removing the bed is the easiest way. But I am running in to trouble with breaking loose the nearly...


Remove gas tank is best way, 16 gal tank is mounted on drivers side, 19 gal. tank is in the rear of truck, send me you VIN # and I'll let you know for sure what size fuel tank you have, hope this was very helpful.

Aug 30, 2010 | Ford F-150 Cars & Trucks

3 Answers

Flotec 42 gallon water tank - short cycling and changing water stream...do I need a new tank or could it be another problem?


These holding tanks are pre charged with air which in turn pressurizes the water. The tank has a bladder and an air valve on top. The pre charge ,over time, loses pressure, and the tank has to be pressurized again.
  • The well pump needs to be turned off.
  • The water has to be drained from the tank
  • Air is put into the tank from the air valve on top of the tank, and is measured with a tire air gauge.
  • The pre charge pressure is set to two psi below the pump cut in pressure.
  • In other words if your pump kicks on at 30 psi, the pre charge pressure is set at 28 psi. If the pump kicks in at 20 psi, the pre charge is set at 18psi, etc.
  • After you pressurize the tank, turn water back on.
  • If water comes out of air valve on top of tank, then the bladder is ruptured and you need a new tank.
  • Hope this helps!

Jul 06, 2009 | Flotec Corrosion Resistant Shallow Well...

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