I have been getting poor circulation through my pool heater, so I took the
plumbing apart and found that the inlet and outlet pipes (metal) are rusted
something awful. The pipes are about 2 inches in diameter, but have so much
rust built up inside that there is less than a half inch of space.
Replacing the pipes (and cleaning the heat exchanger, etc.) is easy enough,
but I'm wondering if the new pipes will rust as well? In other words, is
this just a necessary evil over time (15 years in this case) or is there
some way to prevent this? Some other kind of pipe? Or maybe someone didn't
maintain the chemicals well?
depending on your heater, check with the manufacture, you might be able to
use pvc. In the old days when I put my heater in the directions said to
install rigid nipples for 4-6 inches. Then you could change over to pvc. Do
not use copper pipes
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I have a friend who had this problem recently. His pool is only one
year old! Here is what the pool heater manufacturer told him...
YOU HAVE NOT BEEN KEEPING THE WATER IN YOUR POOL PROPERLY CHEMICALLY
BALANCED AND THIS CAUSED THE WATER TO ATTACK THE COPPER PIPING IN YOUR
Basically, the way he described it is when the ph or some other
analysis of the water gets to a certain point the corrosion starts in
the piping...you have to maintain your pool water continuously.
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