Return to the Plumbing Forum | Post a Follow-Up

Well pressure tank

Posted by kellerk2 (My Page) on
Thu, Apr 4, 13 at 16:13

I need to adjust the precharge in my well pressure tank. It is located in my crawlspace, lower than any faucet in the house, and does not have a drain plumbed into the line. In order to actually drain the tank, I would have to undo the feeder line (PITA). Do I need to drain the entire tank before setting my precharge to the 2 or 3 lbs under my cut in? Or, can I just shut the well off, turn on a faucet to drain the pressure, and then add air to the right pressure?

Follow-Up Postings:

RE: Well pressure tank

You need to drain the tank completely. Standing water above the tank will cause your tank pressure to be incorrect. I know it's a pain but perhaps, as long as you have to disconnect the line anyway, you could install a drain valve.

RE: Well pressure tank

All my tanks have the bladder in the top. I have 4 such tanks and the air is at the top. There is no way that the weight of water could be above an intact tank bladder.

This post was edited by bus_driver on Sat, Apr 6, 13 at 11:56

RE: Well pressure tank

delete duplicate post.

This post was edited by bus_driver on Sat, Apr 6, 13 at 11:53

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Plumbing Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here