overflow pipe question

[noodlestrudel16]

I'm planning to make a 200 gallon aquarium (80"x24"x24") and want to add an overflow that drains to a filter below the tank.

It's my first time making an internal overflow so this is my question. Will a 1.5" or 2" diameter straight pipe as shown in the picture around 22 inches in length create a lot of noise, as I've read many time in this forum?

404585

[leg89]

i don't know, but i guess it would be better to put a 180o elbow so water enters from under. the elbow would need a lil hole on top for air... are you following me?

[noodlestrudel16]

Yup, I've read about the DIY durso pipe but I'm hoping to keep it real simple

[bgcoop8784]

one thing that helps if you don't wanna do the durso, use a bigger pipe above the bulkhead than what you are plumbing too, basically if you have 1 1/2" pipe and bulkhead, go 2" with the stand pipe, don't know why it works, but it does normally help a lot.

[ozpkchris]

if you check out chompers threads he has a solution for that type of overflow and noise
it believe he used a pen and some netting.... probably hard to imagine but you need something to brake up the cascading effect,,,, search his setups or shoot him a pm ..... oh and a durso is very simply and very quite but good luck

[ozpkchris]

and another thought some people put a ball valve under the tank in line with this over flow.... you close it slightly until it creates a back pressure but not to much were your restricting much flow, this should also reduce noise

[noodlestrudel16]

Okay thanks a bunch!