Hi everyone. I am using a drip to waste system that jas been working perfectly fine. I have a 100l tank and the plants are fed using an mj1000lh pump. I usually fill the tank to aboit 80litres. Now ive had no problems till the other day. I came home to find the room flooded. So after a clean up operation i turned the pump off because the plants were saturated and certainly wouldnt need feeding that night. Whilst in the room, i topped the tank back up. Now the pump was OFF but the next day the room was flooded again! The tank was emptied to about half way, same as day before. Whats happening?! This hasnt happened before. Has the pump become weak and the pressure of the water above forcing the propellor round? Is it siphoning out? Please help becuase i am lost! Ive borrowed a pic i found online which is exactly what i have but i have 8 plants....Help! Thanks in advance.