Please suggest a good pool cleaner to use for the Intex pools. Currently I have a 22ft pool and am running a Sand filter with a 1hp Intex pump. I know that Intex's pool cleaner tends to be a pressure side cleaner and it has VERY mixed reviews. I tried using a Lil' Shark but mine just sits there. Not sure if the issue is the pump losing it's prime or if that cleaner just won't work for that type of pool...Any ideas?