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Topics - AlbertoAbreu

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Valve Tech / CSV125-50-1 cycling on and off, will not remain at 50psi
« on: November 14, 2018, 08:45:33 PM »
Hello
My system involves a 3/4hp pump to suction water from a water reservoir barely 2m below ground. At the end of the intake 1" pipe, I have a foot valve. The water pipe goes into the pump, then via a checkvalve, then through a CSV125-1 control valve, crossing a T juncture where my pressure gauge, pressure switch and 4 gallon pressure tank are situated before going into my house. I have adjusted the pressure pressure switch for a cut in at 40 psi and cut out at 60. The pressure tank has a pressure of 38psi.

The problem I am facing is that, when the cut in pressure is reached, the pump is activated raising the pressure from 40 up but instead of reaching 50psi and remaining there, as I was expecting, it overshoots and continues to 60 and then cuts off. Needless to say, this will continue, cycling on and off until the tap is closed in the house.

I have read your troubleshooting table and have heeded the information there. Going through the list, the pressure switch is set correctly (when I drain the system and have everything off it DOES read 0). I am not sure if I have a waterlogged pressure tank but it is relativel new- How can I tell if it is waterlooged?. I really don't know if I have a bad or torn diaphragm. Is this referring to a part of the CSV or of the pressure tank? How can I tell?

The water were I live has a lot of sediment which I am able to partially remove with a 5micron cartridge filter in the entrance to my house (prior to the pump) but we still have very fine particles that will be pumped through the CSV. I was wondering if the CSV can malfunction if it gets clogged up. If this were the case, are there instructions on how to dismantle and clean?

Looking forward to your advice.

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