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Old 11-15-2012, 01:52 PM   #2415
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Join Date: Aug 2006
Location: shiran
Posts: 7,451

Originally Posted by UCSF2012 View Post
Chemical cleaning isn't as effective as mechanical. In other words, use a brush.

...or you can just put in new pipes. PVC pipes don't corrode.
You are right in a sense - it really does need to be a combination of chemical and mechanical cleaning. This morning I was so distraught over the then-defunct fountain that I took the whole thing apart. The filters around the engine were clogged with dirt and debris, as it turned out. I submerged everything (except the electrical in/out ports) into a running soapy bathtub and voila - working like a charm now.
i don't remember
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