Possible to modify to Herbie overflow or even Bean Animal?
- Thread starter DerekC
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ca1ore
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What is between the two overflows- cannot tell on my phone. Probably the only way to do it would be to run a balance pipe out of the back of each overflow.
DerekC
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Thank you very much for the link. It has a lot of info.
I chose to join two overflows so they act as one, as quoted:
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Option 2: Joining the two overflows so they act as one
If the two overflows can be connected with a “Tunnel” of sorts, then they will act as one overflow with two weirs. This is commonly known as a Balance Pipe. A pipe that spans behind the tank, passing through a bulkhead at the rear of each overflow. It could also be done inside the tank, but wouldn’t look very good unless covered with sand.
You will want the bulkheads for a Balance Pipe lower in the overflow so they are always submerged (below the siphon intake). Larger diameter pipe will allow water to equalize between the two overflows quickly. Strainers on each bulkhead opening will ensure that nothing gets in the pipe.
This setup allows for 2 pipes to be used as a typical siphon / emergency combo. The third pipe is used as the primary emergency and the fourth pipe can be used either as a secondary dry emergency, or as a return output running over the overflow wall into the tank.
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I will do it inside the tank and use rocks to cover it.
Oh, I have only one hole in each overflow. No room to drill 2nd hole.
The middle in between is just a "pass thru" that no water would go in. I guess I can run my light cords thru there.
I chose to join two overflows so they act as one, as quoted:
=================
Option 2: Joining the two overflows so they act as one
If the two overflows can be connected with a “Tunnel” of sorts, then they will act as one overflow with two weirs. This is commonly known as a Balance Pipe. A pipe that spans behind the tank, passing through a bulkhead at the rear of each overflow. It could also be done inside the tank, but wouldn’t look very good unless covered with sand.
You will want the bulkheads for a Balance Pipe lower in the overflow so they are always submerged (below the siphon intake). Larger diameter pipe will allow water to equalize between the two overflows quickly. Strainers on each bulkhead opening will ensure that nothing gets in the pipe.
This setup allows for 2 pipes to be used as a typical siphon / emergency combo. The third pipe is used as the primary emergency and the fourth pipe can be used either as a secondary dry emergency, or as a return output running over the overflow wall into the tank.
=================
I will do it inside the tank and use rocks to cover it.
Oh, I have only one hole in each overflow. No room to drill 2nd hole.
The middle in between is just a "pass thru" that no water would go in. I guess I can run my light cords thru there.
