Posted to alt.home.repair
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pool heaters
"Bob" wrote in message
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jthread wrote:
Anyone have experience with pressure switches?
Mine has malfunctioned twice in one year. I just looked it up and it's
$52. This can get old real fast.
The coiled copper tubing between the header and pressure switch should be
filled with mineral oil -- direct water contact with the diaphragm can
cause it to corrode.
makes sense, thanks
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