Plumbing for 2 returns, 1inch or 3/4

[JoshH]

Yes sump, with a fuge, and skimmer. And your right will need less flow to give the skimmer more to pick up things. I just figured with all the/ T splits, elbows, height/foot loss, and maybe installing a manifold would be a lot of back pressure loss. At least around 600gph of loss

What type of pump are you using? You are most likely correct in you're going to be dealing with quite a bit of flow loss, certainly bringing you down below your overflows rated capacity.

 

[Lex_510]

What type of pump are you using? You are most likely correct in you're going to be dealing with quite a bit of flow loss, certainly bringing you down below your overflows rated capacity.

Sicce Syncra 6.0 DC adjustable pump

 

[Lex_510]

Sicce Syncra 6.0 DC adjustable pump

 

[Rjramos]

At 800gph, you are turning your 75 gal over 10.5 x per hour. That is very good. You got more pump than you need.

 

[JoshH]

Sicce Syncra 6.0 DC adjustable pump

Honestly with a few elbows, a T fitting and reducing to 3/4" outlets you're probably maxed out at 800 orso GPH. Add a reactor or two and you're into the 5-600 GPH making it to your outlets. Split that in half and you're 250-300 coming out of each one.

 

[Lex_510]

At 800gph, you are turning your 75 gal over 10.5 x per hour. That is very good. You got more pump than you need.

I’ve been contemplating on return size for weeks down to the what size to drill for the 2 bulkheads returns on the pressure loss, Maybe I’m just over thinking it

 

[Rjramos]

I had to look up the performance curve on your pump cause I wasn’t sure. I don’t run any DC pumps. Don’t know how high your display tank will be, but at 6ft of head pressure, it puts out around 800gph. I’m thinking you want to return through 2- 3/4” bulkheads drilled through the top back of the back glass. This will work fine with minimal reduction vs. going with 1- 1” bulkhead into the display, which would give you the 800gph without a nozzle. 2 -1” bulkheads will have to be reduced to 2-3/4” male loc-tite threads anyway. So if you reduce before the 3/4”bulkheads or down below at the 1”x3/4”x3/4” T,the difference in loss is minimal. I would go with 3/4” inside thread bulkheads, connect to 3/4” loc-tite male adapter, connect a loc-tite 3/4”x1/2”x1/2” wye, and then finish with 2-1/2” nozzles on each side of the tank.

 

[Lex_510]

I had to look up the performance curve on your pump cause I wasn’t sure. I don’t run any DC pumps. Don’t know how high your display tank will be, but at 6ft of head pressure, it puts out around 800gph. I’m thinking you want to return through 2- 3/4” bulkheads drilled through the top back of the back glass. This will work fine with minimal reduction vs. going with 1- 1” bulkhead into the display, which would give you the 800gph without a nozzle. 2 -1” bulkheads will have to be reduced to 2-3/4” male loc-tite threads anyway. So if you reduce before the 3/4”bulkheads or down below at the 1”x3/4”x3/4” T,the difference in loss is minimal. I would go with 3/4” inside thread bulkheads, connect to 3/4” loc-tite male adapter, connect a loc-tite 3/4”x1/2”x1/2” wye, and then finish with 2-1/2” nozzles on each side of the tank.

thanks for the advice, just wanted to Clarify on returns, 1st time building a tank with sump want to make sure it’s done right

 

[Lex_510]

thanks for the advice, just wanted to Clarify on returns, 1st time building a tank with sump want to make sure it’s done right

should I even do a 2 output manifold?