Re: Water Well Problems

Posted by jdemaris on December 19, 2005 at 20:15:55 from (69.67.229.33):

In Reply to: Water Well Problems posted by john in la on December 19, 2005 at 18:05:30:

You didn't mention if you've got a submerged pump, a jet-pump shallow well setup with the jet in the house on the pump, or a deep-well jet with the jet at the bottom of the well (two pipes going down), and maybe even an old piston pump. Since you're running pressures of 40-60, I'll assume it's not a piston-pump.
Connections vary a little between jet systems and submerged - but either way, something is not making sense. Assuming you've got a standard manifold at the tank that holds the pressure gauge, pressure switch, and outlet that feeds water to your house's plumbing - the pressure the gauge shows should match what's coming out of your faucets - they are all in the same ciruit. I realize that some jet pumps have a gauge screwed into the pump chamber housing instead of a manifold at the tank. If you open a faucet and eventually the flow and pressure drops to near nothing but at that time the gauge is showing 40 PSI or over - either the gauge is not working - or there is a blockage between the faucet and the gauge.
The other possibilities mentioned don't seem to apply. If the tank has become waterlogged - i.e. lost it's air charge (or trapped air) - the pump would cycle on and off every time you turn on the faucet - but the water would still come out at the usual pressure and flow. If the footvalve - or the checkvalve in the submersible pump (if you have one)was bad - the pump would loose its prime, and there were be a time lag quite often when using water. But - if it's exactly as you say - and the water flows fine once the pump starts -but flow and pressure drops near to zero before the pump starts again - then it sounds as if pump cut-in pressure is way too low - or the the water-inlet to the pressure-switch is plugged. I've seen some weird problem with the little inlet to the pressure-switch getting plugged with corrosion.

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