Will a new Polaris 3900 Sport work with existing return?


Active member
Aug 14, 2015
Bellflower, CA
I am considering replacing an old Polaris 180 suction cleaner with a Polaris 3900 Sport (will use existing booster pump). The existing return opening is about 1 inch and is only a hole in the side of the pool so it has no threads in it and the old Polaris 180 connector/fitting apparently was just twisted into it. The Universal Wall Fitting for the Sport is supposed to be 1.5 inch. I don't know if that is the threaded end or the Quick Disconnect female end. Does anyone know? Thank you.
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