I have chronic issues with my pool's filtration system and none of the solutions or suggestions I've ever received have solved it. So today I finally found a "slime bag". I would like to use it with my backwash while vacuuming, but would also like to attach it to the return jet as suggested when the pool is not in use. I can't really figure out what exactly the piece is that fits into the return to attach the bag. Wondering if anyone can help me with this and let me know exactly what I'm looking for at the hardware store to use as a fitting.