When adding polyquat to your pool at closing, can you just add it in front of a return without brushing afterwards like you do with liquid chlorine? If so, do I add the whole bottle in front of the deep end return or do I need to add some in front of the shallow end return too? A pool service is closing our pool next week sometime but I would like to go ahead and clean up the pool and put the mesh cover on now to keep leaves out of the pool until closing day. If it is okay to just add the polyquat in front of a return without brushing, I will pull back the cover and add it in front of a return the day before closing and run the pump all day to mix it in real good. If brushing is needed after polyquat is added to the pool, I guess I will go ahead and add it now before I put the cover on, even though the pool won’t be winterized until next week sometime. Water temperature is above 60 degrees so I don’t feel comfortable closing without polyquat since it has worked well in the past.