over flow w/o the holes
- Thread starter lizardfishman
- Start date
By 'holes', I take it you mean bulkhead holes in the glass.
There is a way to assemble a gravity overflow for a sump without the need of drilling.
You're basically using the same principle of the "hang-on" type overflow box with connecting siphon tube(s). Except, in this case, you're making the aquarium one side of the siphon and the plumbing the outside part of the siphon. Use 3/4" PVC pipe/fittings for up to 600 gallons of flow. Use larger PVC for greater flows.
The 'T' connector is crucial to making this overflow work correctly for a gravity-fed sump filter:
There is a way to assemble a gravity overflow for a sump without the need of drilling.
You're basically using the same principle of the "hang-on" type overflow box with connecting siphon tube(s). Except, in this case, you're making the aquarium one side of the siphon and the plumbing the outside part of the siphon. Use 3/4" PVC pipe/fittings for up to 600 gallons of flow. Use larger PVC for greater flows.
The 'T' connector is crucial to making this overflow work correctly for a gravity-fed sump filter:
the reason u have holes is because if u dont and the power goes out, the pump will stop and the sump will overflow. with the holes the water level will drop far enough to break the siphon.