Published on April 9th, 2015 | by Henri


Pink (or green) rings in toilet

Q.  I recall a column that talked about pink rings in toilet bowls and a potential problem with acidic water eating away at my pipes. I wondered if you had an opinion on what the acceptable range for tap water pH should be. I have made some inquiries and am hearing that 6.5 to 8.5 is an acceptable range. Should I invest in a neutralizer if my pH is below 6.5 or does it need to be less than that to justify the expense?

A.  The ideal and neutral pH is 7. A pH of 6.5 is quite acidic. The fact that you have pink rings in your toilet (usually the rings are more greenish, although another reader recently described them as blue) seems to indicate that you need to have your water checked by a water specialist.

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