[daniella3d]

How did you set up your emergency overflow? Is it a completely independant overflow? or is it connected with the main overflow?

Another thing that worry me is if the return pump fail and the skimmer and heater are in the sump, then the temperature in the tank will drop and it won't be skimmer either. This is why I am worried about putting the heater in the sump. Skimmer is ok since it is ok to run without skimmer for some time.

[quote=intarsiabox;669100]Depends on how you set it up. I have an emergency overflow the same size as my main that will never get a chance to clog with anything until my mainline completely fails. Then my emergency overflow would also have to completely get blocked before any water would get to the floor.quote]