| Re: My slow 135g build Ok, ive got the pumps ordered & will be plumbing soon but i havent ordered my RO/DI unit yet because i havent figured out how to have a ATO with a glass 55g sump. i'm hearing how the water movement throws off the sensors and causes the pump to keep kicking on or cause flooding. Any threads out there that could help me, i can only remember one but not where |