Hidden Closed Loop Intake

[banditpowdercoat]

Originally Posted by Mr OM

I imagine you have done pretend power outage to see what would happen.

Acctually, we have a outage atleast once a month. AND, I shut my pump off completely every water change.

My closed loop intake is at the bottom of the overflow. And the drain into the sump is a Durso style. There is No reason why you cant have a Closed loop intake in an overflow

[golf nut]

Originally Posted by banditpowdercoat

Acctually, we have a outage atleast once a month. AND, I shut my pump off completely every water change.

My closed loop intake is at the bottom of the overflow. And the drain into the sump is a Durso style. There is No reason why you cant have a Closed loop intake in an overflow

Which pump?

[banditpowdercoat]

Originally Posted by Mr OM

Which pump?

Pentair Quiet one 3000 for my closed loop, and a MAG 3.5 for my sump return.

Why would it make a difference what pump I used? they have an intake and outlet, which you attach pipes to

[Delphinus]

Originally Posted by banditpowdercoat

Acctually, we have a outage atleast once a month. AND, I shut my pump off completely every water change.

My closed loop intake is at the bottom of the overflow. And the drain into the sump is a Durso style. There is No reason why you cant have a Closed loop intake in an overflow

Are the closed loop inlets and outlets at the same height or higher than the overflow standpipe? I had totally convinced myself that it would drain the tank to the standpipe because the main tank is open to the overflow via the closed loop plumbing, but there must be something that is preventing this?

[banditpowdercoat]

Originally Posted by Delphinus

Are the closed loop inlets and outlets at the same height or higher than the overflow standpipe? I had totally convinced myself that it would drain the tank to the standpipe because the main tank is open to the overflow via the closed loop plumbing, but there must be something that is preventing this?

My closed loop inlet is bottom of overflow, the outlets are just at waters surface. OK, NOW I am seeing a possibility. IF you have a sump drain at the bottom of the overflow, AND have CL outlets mid tank or so, Yes then it will back flow through the CL outlets, into overflow, and flood the sump. But, if you place your Sump standpipes up at a height that will prevent this. Even Herbie style can use tall standpipes. Then, no matter how low in the tank the CL outputs are, the Overflow will not drain lower than the height of the standpipes.

Like anything in this hobby, Nothing is impossible, but EVERYTHING needs careful planning


Here is a pic of my overflow. You can see the CL plumbing. Pump is in bottom of Overflow. and ,my Durso drain. Water level drop is 2" approx over the overflow. Sump outlet is the Locline to the lower right, its' about 1" below the water surface, and there is a check valve on that line to top extra siphoning. I could put any of my CL outlets below the water line, But my reason fro doing the CL was to eliminate the look of outlets in the tank. So, I have kept them at the surface. next tank is hiding them in the rockwork