Jandy stain remover

The issue is to identify the stain first and then take action.

A picture sometimes helps. A description of the stain is likewise useful.

A complete set of test numbers is often a great indicator as to the kind of stain you have and what to do about it.
 
The jandy stain remover is a device for delivering undiluted acid to a stain. You can accomplish the same with a PVC pipe. However, not all stains respond to acid so the first step is to identify WHAT the stain is.
 
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