Thank you for your reply and I get what you wrote but what happens if you loose power? Once the pump turns off the water level will drain until level with the overflow. The sump will start to fill with this water which will be in turn drained off due to the overflow drain for the water changer. Once power is back on will there be suffice next water left in the systems ? Do you set the over flow drainage fairly higher to make sure thee is enough left and then in that case do you risk the sump overflowing with power outage? Thanks
Sent from my iPhone using
MonsterAquariaNetwork app