Pressure increase

[Louie1]

I replaced my pressure tank, pressure switch and pressure gauge 5 years ago because it was short cycling and water was spraying out of valve on top when trying to check pressure. I set the pressure at 38 PSI because I have a 40/60 tank and switch. Cycle time was about 2.5 minutes. Worked good. Then about a month ago I notice it was cycling every 25 seconds. So, I shut off the pump and drained the tank and checked the pressure, expecting it to be low. Instead it was at 52psi. So, I Lowered the pressure back to 38. Filled the tank and cycle time went back to 2.5 minutes. About a week later it was back cycling at 25 seconds. So, again I drained the tank and pressure was at 52 again. I would like to add that no water sprays out while lowering the pressure, only air. I’ve repeated this process a couple more times while searching for an answer on you tube and google without any luck. I have a theory in my had but I wonder if others have run across this problem? Thank you in advance.

 

[Valveman]

The tank is bad again. Water won't come out of the Schrader valve until the tank is completely waterlogged. But water is getting into the air chamber, which is the only way pressure in the air chamber can increase on its own. The run times will get shorter and shorter and eventually water will come out the Schrader valve. It is all by design. Cycling on and off destroys the tank, pump, and everything in a water system. Eliminating the cycling will eliminate all the problems and make the pump system last several times longer than planned by the manufacturers. That is why they call the Cycle Stop Valve a disruptive product and will do or say anything to keep you from using one.

 

[Sponsor]

 

[Louie1]

The tank is bad again. Water won't come out of the Schrader valve until the tank is completely waterlogged. But water is getting into the air chamber, which is the only way pressure in the air chamber can increase on its own. The run times will get shorter and shorter and eventually water will come out the Schrader valve. It is all by design. Cycling on and off destroys the tank, pump, and everything in a water system. Eliminating the cycling will eliminate all the problems and make the pump system last several times longer than planned by the manufacturers. That is why they call the Cycle Stop Valve a disruptive product and will do or say anything to keep you from using one.

 

[Louie1]

Hey Valveman, that’s kind of what figured, I was just hoping that the tank would have lasted longer than 5 years. I will definitely be changing to a cycle stop valve this time. Thank you so much for the expertise advise,

 

[Bannerman]

just hoping that the tank would have lasted longer than 5 years.

Unless a low quality tank, rapid failure will usually be a result of frequent cycling. Although a larger pressure tank will have reduced the cycling frequency, even the largest pressure tank available, will not prevent cycling from occuring.

Because a CSV will prevent cycling as it will restrict the flow rate from the pump to match the flow rate being utilized, a large pressure tank will not be necessary. For most single residence applications, a 4.5 gallon PT will usually be sufficient.