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Install & Replace

well pressure tanks

is it hard to replace your well pressure tank?

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Posted 2010-12-19T14:52:52+0000  by dongeo dongeo

Hi dongeo, ChrisFixit here with some steps to hopefully make this project a breeze to complete. I had to do some research but replacing the tank seems to be a fairly painless process. You'll need a few tools to get it done but nothing too extravagant.



  • pipe wrench (possibly two)
  • adjustable wrench
  • short length of hose
  • bucket
  • teflon tape
  • P B blaster (penetrating catalyst)



Turn off water supply and circuit breaker for the pump.

  • Tip: completely remove the breaker :robotwink:
Using a short piece of hose and bucket drain the system of water. This could take up to 10 minutes depending on the amount of water in the system.
Remove the the cap (usually plastic) that covers the pressure switch. Disconnect the wires connecting the supply lines.
  • Tip: Outer wires for supply lines. Inner wires go the pump.
Using a pipe wrench disconnect the pipes between the tank and well. 
  • Tip: two wrenches may be needed to work loose union fittings.
  • Tip: while separating pipes hold them upright to help prevent the tipping over of the tank.
The tank can now be removed using the tried and true "tip-roll-walk" method. Once you have the tank out in the open you can now remove any pipe, gauge, or switch you may plan to reuse.
  • Tip: "tip-roll-walk" trust me save your back.
Re-install involves the replacing or reconnecting of the pressure switch and gauge to the new tank. Place the new tank back into position and connect the proper pipe fittings back together. Reconnect your wires back to the pressure switch. Once your pipes are fitted and switch connected turn the water back on and check that everything is fuctioning properly. 
  • Tip: there are quite a few pipes to disconnect, keep a placement log by sketching or photographing connections to make reassembly easier.
  • Tip: when teflon taping the pressure switch and gauge make sure to wrap "with" the direction of the turn. This will prevent the teflon tape from tearing during tightening. 
  • Tip: during installation of the new pump some pipes and fittings may need to be altered. Head off any potential problems by either trying to find a tank of similar size or placing new tank into position before making any connections to check for fit.
I hope this is helpful and makes your project easier. Welcome to the community and be sure to let us know if you have any further questions, and definitely let us know how the project turns out.


Posted 2010-12-19T16:48:49+0000  by Chris_HD_ATL
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