Return to the Plumbing Forum | Post a Follow-Up

 o
Blue/Green Staining Tubs Only pH=7.0??

Posted by dantis (My Page) on
Wed, May 2, 12 at 12:44

Hi All,

A little background. Had new Kinetico 2060S softener and 2100 OD Neutralizer system installed in Oct 2011 with the help of this forum. Dealer came back to make some adjustments etc. Total hardness has stayed at 0 GPG per my test strips and 7.0 pH per other test strips. I had staining before the softener was replaced (Fleck previously), and the Kinetico has helped decrease it, however, I still get staining in 2 upstairs tubs only. Takes 2-3 weeks from a clean tub to see the stains...More background, I have a boiler-mate hot water system. Oil boiler with elec hot water tank. Cirulator on Hot water tank circulates water thru boiler...When I had the boiler replaced (due to leak ironically) 2 years ago, plumber took out what looked like a filter housing. Upon further reading, I think it may have been a polyphosphate feeder on the cold water feed.

Questions: If staining is not caused by low pH, what can it be caused by?
What is a possible solution?

Thanks for the help..


Follow-Up Postings:

 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

Instructions

  • You must be a registered member and logged in to post messages on our forums.
  • 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 the contents and make changes.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • It is illegal to post copyrighted material without the owner's consent.
  • HTML codes are allowed in the message field only.
  • No advertising is allowed in any of the forums.
  • 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.



 
Click here to learn more about in-text links on this page.