MarkerB
New Member
Y'all!
I've got a 250' foot well. The 240V submersible pump, check valve, drop pipe, wiring, tank, and gauge were all replaced 4 years ago. Recently the 30/50 pressure switch wasn't cutting off, even at 70psi, so I replaced it.
Now the new pressure switch works fine most of the time, but every few days its low pressure safety protection trips, and I have to reset it. This is going to be really bad in the winter, as it's all in a pump house outside.
I took a video of several pump cycles, so it's easy to see what's happening. Just when the pressure switch calls for the pump to start at the low point of 30psi, there's a big extra drop in pressure to 20psi or lower, before the pump actually can get the pressure up again. This happens for each cycle, and it looks like sometimes the pressure momentarily drops enough that the low pressure safety engages.
Why would the pressure drop a whole lot, but just for a moment, when the pump starts? When I reset the switch, the pressure immediately comes up to 35PSI.
I also hear two clicks from the pressure switch, in rapid succession, each time the pump starts... or each time it stops. The double click sounds coincide with the pressure drop. A clue?
I checked the voltage, and it's solid even when the pump starts.
I raised the cut in/cut out pressure about 5PSI, and now it happens less... but still happens. It will happen more often when I'm consuming a lot of water, which kind of makes sense.
Here's a video of both a successful cycle, and one where the safety mode is tripped. Please ignore the very active spider, and the temporarily shoddy electrical cabling!
Thanks,
Mark
I've got a 250' foot well. The 240V submersible pump, check valve, drop pipe, wiring, tank, and gauge were all replaced 4 years ago. Recently the 30/50 pressure switch wasn't cutting off, even at 70psi, so I replaced it.
Now the new pressure switch works fine most of the time, but every few days its low pressure safety protection trips, and I have to reset it. This is going to be really bad in the winter, as it's all in a pump house outside.
I took a video of several pump cycles, so it's easy to see what's happening. Just when the pressure switch calls for the pump to start at the low point of 30psi, there's a big extra drop in pressure to 20psi or lower, before the pump actually can get the pressure up again. This happens for each cycle, and it looks like sometimes the pressure momentarily drops enough that the low pressure safety engages.
Why would the pressure drop a whole lot, but just for a moment, when the pump starts? When I reset the switch, the pressure immediately comes up to 35PSI.
I also hear two clicks from the pressure switch, in rapid succession, each time the pump starts... or each time it stops. The double click sounds coincide with the pressure drop. A clue?
I checked the voltage, and it's solid even when the pump starts.
I raised the cut in/cut out pressure about 5PSI, and now it happens less... but still happens. It will happen more often when I'm consuming a lot of water, which kind of makes sense.
Here's a video of both a successful cycle, and one where the safety mode is tripped. Please ignore the very active spider, and the temporarily shoddy electrical cabling!
Thanks,
Mark