OK, I have seen lots of posts saying you shouldn't just add chemicals over the side, but in front of a return. My problem is that my returns are in the floor of the pool, with the exception of one return which is in the 80cm deep childrens pool. I don't really think it is a good idea to be pouring chemicals, particularly acid, in such shallow water. I can't see any other way than over the side. The way we do it now is slowly over the side, mostly at the deep end, and above the bottom drain, which is always open as we use it for filtering. Any other suggestions?
Pool is an infinity pool, so "skimmers" are over the edge.
Thanks for any advice you can give.