Question about Saniflo 021 Saniswift Residential Water Pump

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My water supply pump to house works but does not pump water from tank to house

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What type of pump is it? Is it a shallow well pump or submersible
pump? Is the pump connected to a pressure tank? How have you confirmed that the pump is working properly? Is there a drain valve, and is there water pressure from the drain valve when it is opened? If the pressure tank is of the pre-charged type, is it working properly? Is there water coming out of the air valve? Are there any shut-off valves in the system which may have been turned off, preventing water flow?

Posted on Apr 19, 2014

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PRIME A GOULD PUMP


whats your question how to prime the pump? if so at the bottom is a 3/4 inch plug screwed into it, or at top, once the pump is hooked up to the lines turn off the power, and unscrew the prime plug fill with water, then screw in tight DO NOT USE THREAD SEALANT THEN THROW THE POWER TO THE PUMP, of course house supply valve must be off 3/4 turn valve off until the line is primed then open the supply line to house slowly to supply the water to all the lines, NOTE WHEN YOU FIRST INSTALL A NEW PUMP, HAS TO BE PRIMED, HAVE TO HAVE SUPPLY LINES FROM WELL TO HOUSE CLOSED TO PRESSURE THE TANK AND TO FILL THE LINES.

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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.

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How do i reprime ?


Close the supply valve to the tank. Open the priming port of the pump, (plug on the upper most part of the casing) pour in water until the pump is filled -up. Close the plug just finger tight. Run the pump. slightly open the plug just to bleed the air with little water. If all water is coming out, the pump motor should cut-off indicating the pump is already primed. Gradually open the supply valve. Pump motor will restart again.

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1 Answer

Ao smith 1 horse house water pump. water pump only fills tank half way to 3 /4 . pump does not stop running.. water pump leaking a little water out of water valve spiot


Hi, W/D here.
The tank has to have an air cushion in it for the water to be delivered as water is not compressible. Ideally, the water is expelled from the tank without air leaving the tank, and then the pump starting to refill the tank. The air in the tank is supplied either by an air bladder installed in the tank, or by an air injection system where a little air is injected into the tank every time the pump runs and shuts off.
A little leak at the pump is not a big deal, but should be capped off or the faucet repaired/replaced at your earliest convenience. Ideally, the water level in the tank should be closer to 80%; so if you have an air injection system, you might let a little air out of the tank (if you have a top valve), and this might cure your cycling problem. With the tank level as is, you are probably getting some air in your lines into the house. If you have an air bladder in the tank, the required pressure of the bladder, with no water in the tank should be on a sticker located at the schrader valve on the top of the tank (A schrader valve is similar to the air inlet valve on a bicycle tire). The ones I am familiar with are set around 28-29 psi. If you have an air injection system, it may need to be replaced. If the costs are close, I would elect to go with a bladder tank, as I've found that they eliminate many of the problems associated with the air injection type.
Fix or cap the faucet so you have no leaks showing at the pump or tank. Catch the pump running, and wait for it to shut off. When it does, close the discharge valve to the house and wait. You may need to trip the breaker for the pump. Watch the pressure gauge. If the pressure falls, the problem is with the well, and you may need to pull the inside well supply line from the casing and make repairs at the foot. My experience has been that it is better to replace the leathers, jet valve and foot valve all at once than to hope they hold if I repaired only one part.
If the gauge holds after 10 minutes, open the valve. If the pressure falls, the problem is on the house side of the valve.
Resolve any issues on the well before checking further, as that's where most well problems originate.
Adjust your tank level and pressure. If the pump continues to cycle, you may need to replace your pressure switch.
Best regards, --W/D--

Mar 10, 2011 | Plumbing

1 Answer

Can i install a water storage tank and fit a pump under the tank and plump straight in to the water supply to the house to give me better water pressure up stairs


What you need to have a better pressure is the pressure tank plus a water pump.
The size of the pressure tank and pump is depend upon your budget. The bigger size and horse power of pump is much better but quite expensive.

I've advise you to visit your local home depot to look for a better brand of pump and tank and they will assist you regarding on your concern.

pls rate my help.

Thanks for using fixya...

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My pump comes on and presurizes about every 20 to 30 minutes, when there is not water being used in the house. If I shut the valve off from the pump to the storage tank the tank will stay presurized and...


When you hear water running, it is usually in a drain. You probably would have noticed a leaking faucet, so it's probably a toilet. Try shutting off the supply pipe to any toilet you suspect and see if that stops the pump. Then you have to fix the toilet.
I hope this helps. Thanks for using FixYa, and good luck.
Al K

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