"trader_4" wrote in message
...
On Monday, August 4, 2014 12:31:28 AM UTC-4, Harry K wrote:
On Sunday, August 3, 2014 1:14:35 PM UTC-7, Pico Rico wrote:

"Harry K" wrote in message



snip



OK. Told the neighbor I would be using off their well. Turned on
the

interconnect and then discovered that there was no shut-ff between
the

pressur tank and my well. Neighbor would have been pumping right into

wherever my leak was.



didn't you have a check valve between the pressure tank and the well?



No. I know people think one should be there but it is redundant and does
nothing but add restrictions to the system. The checkvalve goes in the
well, normally just above the pump or it may be part of the pump.



I'd say a checkvalve located at the submersible pump *is* a checkvalve
between
the tank and well.


as I think about it, I bet that checkvalve was installed between the well
and the pressure tank AFTER the foot valve failed. Interestingly, after
several years, the foot valve started working again.