QuikPure3 Orifice Check Valve Assembly - Pentair In-Floor(A&A) | 391034 Bio-Dex Phosphate Removers there are two tubes needed

there are two tubes needed for the cleaner and this item is not sold in a set

Replacing them with this OEM kit restores full functionality

you may simply need to empty out the contents in the bag because it may be full

or other sanitizing products

QuikPure3 Orifice Check Valve Assembly - Pentair In-Floor(A&A) | 391034 Bio-Dex Phosphate Removers there are two tubes neededQuikPure3 Orifice Check Valve Assembly Pentair In Floor(A&A) Old SKU 563401 A&A Manufacturing is now Pentair In Floor Cleaning & Circulation! This product was designed to act as a safety feature (as are all check valves) as it does not allow the return of any water back to the QuickPure3 which would ultimately damage the unit and deem it inoperable. Now requiring the internals and or the full unit to be replaced costs you a pretty penny. For pool