Need help

Turn it down to a fifth of what it was running or a tenth whatever it takes to keep it from running dry and overflowing the tank
 
What you need to do

Unplug the pump but be ready to turn it back on very quickly. If the power happens to go out it will happen anyway.
Let the water drain down to the sump and watch if it is going to overflow. If it gets close to the top plug the pump back in.
This will tell you if you are in danger of a flood or not because there is too much water in the system.

It will also tell you if you can add more water if it is no where close to full.
 
Sounds like the return pump is too powerful for the size of drains .

I’d try restricting the pump down a little and see if that helps .
or increasing the drain hose diameter
Question-will increasing the diameter of the drain pipe after the bulkhead as it leaves the overflow box help? I can't increase the size of the of the bulkhead because the glass is tempered.
 
What you need to do

Unplug the pump but be ready to turn it back on very quickly. If the power happens to go out it will happen anyway.
Let the water drain down to the sump and watch if it is going to overflow. If it gets close to the top plug the pump back in.
This will tell you if you are in danger of a flood or not because there is too much water in the system.

It will also tell you if you can add more water if it is no where close to full.
Will do. Thanks
 
Question-will increasing the diameter of the drain pipe after the bulkhead as it leaves the overflow box help? I can't increase the size of the of the bulkhead because the glass is tempered.

No. Once the flow is restricted to its smallest size, it can't be increased. Your problem is your return pump, not your drain. As mentioned above, either dial back the flow rate on the pump or replace with one that you can set at the rate you need.
 
Question-will increasing the diameter of the drain pipe after the bulkhead as it leaves the overflow box help? I can't increase the size of the of the bulkhead because the glass is tempered.
No .

the size of the bulkhead is the size that’s restricting the flow .
I’d dial the pump back . Or replace it with a dc pump that can be adjusted
 
There used to be a chart somewhere ......
if using a 3/4” hose and pumped . It needs 1.5” Dia hose for gravity to keep up ?

I can’t remember exactly ..... if the drain was 2x or 2.5x diameter.
it would also depend on the pump rating
 
I think it will be fine once it is setup correctly. But you cant do anything without flooding if it has too much water in it.
The drain risers under the black tees are loo long and need cut off. I hope he didnt glue them.
 

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