will this work?
- Thread starter AnDr3w
- Start date
meh looks like it might dont know the eheim will stop any water from flowing back to the wet dry in the event of a power failure.
on second look i'm confused too many colors lol
on second look i'm confused too many colors lol
Drill a small diameter hole in the side of the pickup tube going from the tank to the Ehiem close to the top of the water level in the 75g tank yet just below it. (the end going into the tank)
Normally it will just skim a tiny bit from the top of the water while most of the flow will be drawn from the end of the pickup...however deep you decide to place it.
During a power outage...with no pump flow it will let air in and break the siphon once the level of the water in the 75 g drops below the small drilled hole. (A small amount will siphon into the sump...but stop before much water is drained from the tank)
Hope this makes sense!
P.S. Do the same for the return line from the W/D pump if it sits much below the top of the water in the 75 g too!
Normally it will just skim a tiny bit from the top of the water while most of the flow will be drawn from the end of the pickup...however deep you decide to place it.
During a power outage...with no pump flow it will let air in and break the siphon once the level of the water in the 75 g drops below the small drilled hole. (A small amount will siphon into the sump...but stop before much water is drained from the tank)
Hope this makes sense!
P.S. Do the same for the return line from the W/D pump if it sits much below the top of the water in the 75 g too!
The tough thing IMHO is going to be trying to regulate the level in the sump (and in the tank too) since you will have two pumps...one in..and one out.
And the flow in one of them (the Ehiem) will slow as the filter becomes dirty.
That is the reason most use an overflow from the tank to the W/D...it self regulates itself to some degree
And the flow in one of them (the Ehiem) will slow as the filter becomes dirty.
That is the reason most use an overflow from the tank to the W/D...it self regulates itself to some degree
Your design will not work. The pumps will never match perfectly, and stay that way. Now if you were to build an overflow to the w/d, and elevate it off the ground a little, you could run the eheim in tubes in the w/d, and just have the pump from the wet dry return all the water back up. But why bother? Just build a bigger w/d in that case.
WyldFya;757878; said:
And the idea of drilling holes to stop the flow in the event of a power failure is along the right thinking but it is flawed. When the power comes back on, the sump will pump to the tank but the canister will not restart. This will do two things:
1. Overflow the tank.
2. Risk burning out both of the pumps.
oops, forgot to add that if the pump in the sump dies, the pump in the canister will empty the contents of the fish tank...onto the floor.