Ask Experts Questions for FREE Help !
Ask
    Bassnbrew's Avatar
    Bassnbrew Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 24, 2014, 05:20 PM
    New convertible jet pump won't reach pressure
    I installed a new convertible jet pump in my basement today. It's the type with two pipes. It is the same type/HP(3/4)as the one I had before. After installation was complete I primed the pump. I took the top cap off, filled it with water, replaced cap and powered the pump. It took many tries but it is now building pressure(close to 40 PSI) but doesn't make it all the way. When I shut the power off it holds at 20PSI yet no water is available in the house. Opening the valve at the pressure tank doesn't relieve the pressure. Only when I take the top cap off again the pressure is released. I am at my wits end. Any help?

    I should add the only difference in the install was that on the old pump the small pipe to the pressure switch came out of the cast iron base of the pump. The recommended setup for this pump was to use a provided pressure regulator on top of the unit and run the small pipe from the to the pressure switch.
    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
    Uber Member
    		  
    #2

    Aug 25, 2014, 06:13 PM
    The recommended setup for this pump was to use a provided pressure regulator on top of the unit and run the small pipe from the to the pressure switch.
    Not too sure what you mean by that. There is a pressure regulator AND a pressure switch.

    Whatever the cut in pressure is, set your tank pressure 2# below that. So, for example, if the pump cuts on at 30#, then set your tank pressure to 28#. Do this with the power off and pressure drained to zero by opening a low-level faucet.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Convertible jet pump [ 0 Answers ]

I just purchased a jet pump to replace a shallow well jet pump, but when I opened the box, it contained a convertible pump with a 11/4 inch hole at top and a 1 inch hole at bottom. Can I plug up the bottom hole and just use the top 1 1/4 inch hole as suction just as a standard shallow pump is?...

Jet well pump pressure set at 40/60? [ 2 Answers ]

I have a Challenger tank 119 gallon, if the power fails and I want to use the water in the tank to be able to flush toilets and wash hands. If I buy a shallow well jet pump or a water pressure booster pump if the pressure is set at 30/50 can I change it to 40/60? I have an outside facuet that is...

Jet Pump no pressure [ 9 Answers ]

I have a jet pump with approx. 25'deep with a galv. 1 1/2" dia. suction line, at the top of the line is a tee with the branch end going to the pump, the the top of the tee is a sealed with tephlon tape plug, between the tee branch and the pump is a check valve, I don't know if the bottom of the 1...

Does shallow well jet pump build air pressure in the bladder or just water pressure? [ 0 Answers ]

My 40/60 3/4hp shallow well jet pump will run continuously and will not build up air pressure in the bladder. The bladder will hold pressure though. I have filled it with air and when I turn on the water it loses its pressure and when the pump kicks on it just keeps running without building the...

Jet pump without a pressure tank [ 6 Answers ]

I have a 1550 gallon holding tank 4 feet from my jet pump by craftsman. The pump is 3 feet from the house. It is used as a cabin in which we use about 300 gallons one weekend out of the month. I was wondering if I have to use a pressure tank. I don't mind the pump kicking on each time we use...

View more questions Search