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  1. K

    Swapped old Booster Pump for New - now have way too much pressure.

    My original booster pump died on me after 7 years - F1RST CHOICE 3/4hp model WB075. I replaced it with a Pentair PB4-60. I thought this would be like for like but the new booster pump is at least twice the pressure, enough to pull the backup valve on my Polaris 280 cleaner apart. My first...