Plumbing help

[Seasidenj]

I have 2 6 foot long frag tanks I would like to plumb to one sump.Each tank has 1 overflow with (2) 3/4 holes drilled and (2) 1 1/2 holes drilled.I will add pictures.Im totally lost so I'm hoping someone can help.Thank you

 

[Rufus’ goofs]

It sounds like you have 2 return lines in each tank and 2 drains.
I believe that’s what’s needed for the Herbie or even Durso style drains.
I would google a couple diagrams and see which style appealed to me most, then run the drains all to the sump with appropriate valves to which style you’d like to go.

What pump are you planning on using for the returns? You would get less friction loss if you start your pipe diameter large and reduce it to 3/4 closer to where it enters back in the tank.

Best of luck!

 

[Fin]

How big are those two holes in the sump above the pre-filter area? Big enough to fit those 1½" drain pipes (without a bulkhead)? If the holes will accommodate the 1½" pipe, you could run one of the drains from each tank to one of those holes and run the emergency drain into the more open space next to the pre-filter area. I would be concerned that the sump may not be large enough to handle the drain down of two 6' tanks and whatever water is in those 1½" drain pipes and return pipes in a power outage or pump failure. Awesome frag tanks, BTW. Planet makes some nice tanks.

 

[Seasidenj]

It sounds like you have 2 return lines in each tank and 2 drains.
I believe that’s what’s needed for the Herbie or even Durso style drains.
I would google a couple diagrams and see which style appealed to me most, then run the drains all to the sump with appropriate valves to which style you’d like to go.

What pump are you planning on using for the returns? You would get less friction loss if you start your pipe diameter large and reduce it to 3/4 closer to where it enters back in the tank.

Best of luck!

Thank you.Im running either ecotech vectra L1 or a reef octopus varios 8

 

[Seasidenj]

How big are those two holes in the sump above the pre-filter area? Big enough to fit those 1½" drain pipes (without a bulkhead)? If the holes will accommodate the 1½" pipe, you could run one of the drains from each tank to one of those holes and run the emergency drain into the more open space next to the pre-filter area. I would be concerned that the sump may not be large enough to handle the drain down of two 6' tanks and whatever water is in those 1½" drain pipes and return pipes in a power outage or pump failure. Awesome frag tanks, BTW. Planet makes some nice tanks.

Yes 1 1/2 inch fits in those holes

 

[Seasidenj]

Dump is a 48 inch trigger sump.48x22.5x 24 h

 

[Seasidenj]

 

[Fin]

Then that is the way I would plumb the drains if it were mine.

 

[Rufus’ goofs]

I would definitely look into a serviceable check valve to help mitigate any overflow issues.

 

[Mastiffsrule]

I do not think your one sump is going to have enough volume to hold water fr9m both tanks in a power failure situation as mentioned. It’s not only the water in the tank that may back siphon but all the water water in the Pvc pipes.

Only way to know if do a test run to be sure