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7500-S Carbon Backwash Filter Guide
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rev102418
Install By-Pass (Fig. 4)
A 3-valve by-pass must be installed around 7500-S filter system, typically using PVC, PEX or other types
of piping. Don’t sweat copper directly on 7500-S or heat up plastic.
Flex lines may be used instead of the unions and 90’s shown. You could have slip by male fittings, then
flex lines, then male nipples.
This reduces the risk of plumbing it with too much pipe deflection- this must be avoided, as pipe
deflection will put undue pressure on the control valve threads which may then crack.