Best way 12x22 pool came with a solar heating pad. I can already tell this thing isn't going to do much for warming our pool up. Out of curiosity, I've noticed the 2 "b" valves which suck water out of the pool, I can barely feel any water being sucked into them. Is this a result of the solar water mat? I thought the b valves would suck in things like flies or any other little things that were in the pool, but it's not clearly as I can't feel any suction from it. Just wondering if this solar mat is doing more damage than good.