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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Pump/pressure tank detective needed
Hey guys,
My dad and I have a perplexing water problem that we can't reason out. Hoping there's some detective out there... We have a shallow well and a jet pump, about 20m head to the house, a pressure tank and pressure switch in the house. System had been working great for 15+ years (same pump and tank too!), pressure switch is set from 30-45psi. Here's the problem: Starting with a full pressure tank, we turn on some taps, water flows at a good pressure, the pressure gauge needle falls slowly as is expected. When the water pressure gets down to 30, the pressure switch makes an audible click but then instead of water rushing in and pressure going back up, the pressure falls fast to about 10psi and continues to trickle out the taps for hours. The pressure does not go up until we turn off all the taps. Once this is done, the pressure goes up fast again to 45psi and the cycle repeats. ?? The pump seems strong since it can pressure up fast to 45. The pressure switch (which we replaced brand new with no effect) is clicking at the right times. Why would pressure fall fast at 30psi after the switch clicks? Why would the pump only start back up when all the taps are closed? Any suggestions would very appreciated!! Thanks |
#2
Posted to uk.d-i-y
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Pump/pressure tank detective needed
On May 5, 4:16*am, Noland wrote:
Hey guys, My dad and I have a perplexing water problem that we can't reason out. Hoping there's some detective out there... We have a shallow well and a jet pump, about 20m head to the house, a pressure tank and pressure switch in the house. System had been working great for 15+ years (same pump and tank too!), pressure switch is set from 30-45psi. Here's the problem: Starting with a full pressure tank, we turn on some taps, water flows at a good pressure, the pressure gauge needle falls slowly as is expected. When the water pressure gets down to 30, the pressure switch makes an audible click but then instead of water rushing in and pressure going back up, the pressure falls fast to about 10psi and continues to trickle out the taps for hours. The pressure does not go up until we turn off all the taps. Once this is done, the pressure goes up fast again to 45psi and the cycle repeats. ?? The pump seems strong since it can pressure up fast to 45. The pressure switch (which we replaced brand new with no effect) is clicking at the right times. Why would pressure fall fast at 30psi after the switch clicks? Why would the pump only start back up when all the taps are closed? Any suggestions would very appreciated!! Thanks Check valve leaking and the pump loses it's priming water? Unfortunately located down the bottom of the well. May be part of the jet assembly. |
#3
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Pump/pressure tank detective needed
On May 5, 4:16*am, Noland wrote:
Why would pressure fall fast at 30psi after the switch clicks? Why would the pump only start back up when all the taps are closed? Any suggestions would very appreciated!! Does the pump start when the pressure switch clicks? I'd think an investigation with a multi-meter would be called for to see whether the LP/pump on switch makes at 30 psi and that the HP/pump off switch has opened at 30 psi. |
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