Recent content by TechInstructor

  1. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    Thank you all for the information. I have a somewhat better understanding of the system. I can't imagine that the issue could be from lowering the water level in the well to the point of dropping the Grundfos flow rate dropping below the faucet output rate. At a head between 132' and 178' with...
  2. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    Sorry for so many posts.. I can't find the edit feature on my phone.
  3. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    I thought "head" was relative to the amount of water in the column.
  4. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    So is "head" the distance from the pump to the tank?
  5. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    no... that's 340' of water in the casing... from 40' (static level) to 380' (depth of pump). The pressure tank is at the well, so only about a foot away.
  6. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    I'm trying to figure out how many feet of head it would have to drop to reduce the flow to less than 4 gpm. (All this math is overwhelming me.) I'll figure it out when I get back to my computer, but I don't think I ran enough water in a short period of time for that to happen.
  7. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    When my well is full I should have 340' of head, which means it should pump 10gpm.
  8. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    I'm trying understand how we can be overdrawing the pump. The Grundfos is rated at 10gpm but I realize that the flow rate varies as to the head. Still, if I am running out water at 4gpm or less, why is the pump not being able to keep up? Is it because at 380' the pump is actually pumping out...
  9. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    When we went to the tank yesterday evening, the air pressure in the tank was 55 psi with the water not running. We reduced the psi to 53, then ran some water to be able to watch the gauge. The switch now turns off the pump at 57-58 psi and turns it on at around 38 psi. Last night it all...
  10. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    Actually I couldn't do that without draining the tank so we just reduced the tank air pressure by 3 psi. So far so good. I'll let you know!
  11. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    Thanks Reach4 So set the air precharge to 36 PSI and I'll see if that helps. I wondered if the slow start of the new pump was part of the issue. Sure I'm all for learning about other options.
  12. TechInstructor

    Low Pressure Cut Off Switch Intermittently Cutting Off New Pump

    We installed a new pump in our well. It is a Grundfos 10SQ10-290 - 10 gpm 1 hp. Our well is 420’ deep - the pump sits at 380’ - the static water level is 40’ and the well flow is 2 gpm. We also installed a new pressure tank. It is a 22g CAD2 Flex-Lite composite tank. There is a new Square D...
  13. TechInstructor

    Small leak at well seal tee

    For now I need to get the sediment cleared from my water and then restock my stored water before the well has to go through chlorination again. I am assuming that would be required if the seal is taken off. So I need to wait a while anyway. I do intend to contact the installer and apprise him...
  14. TechInstructor

    Small leak at well seal tee

    Yes, there is a one year warranty on the labor. The caulk was put in the wire hole after the photo was taken and the vent was also installed. The well was thoroughly chlorinated and is still has a little chlorine odor in the water. I think I'm going to wait until the end of summer and then...
  15. TechInstructor

    Small leak at well seal tee

    I recently had a new well pump installed. The installer replaced the old plumbing and put in a well seal with a stainless tee. After running water for a while we have determined that there is a very slow leak coming from the base of the tee fitting at the top of the well. Over a period of...
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