another loud drain. plastic gate valve?

[mark]

had a 33g QT tank and playing around did a Herbie with no overflow. Wouldn't recommend running permanent since overflow chambers are easy enough but could try a Herbie.

On the inside just do the 2 upturned 90°s, with one stub say a couple of inches below where you want your water level, second stub just a little above where you want the level. Gate valve on the line with the shorter stub, got a Herbie.

[damtrees420]

here is a photo with the bracing it would be hard to make an over flow you would have any access to

[toytech]

if you put a tee on the outside of the bulkhead , you put a cap on it then drill a small hole in the cap .Its a durso drain , you can experiment with different size holes to get it almost silent .Im plumbing a 30 gal cube right now with the exact same thing .

[mark]

Originally Posted by damtrees420

here is a photo with the bracing it would be hard to make an over flow you would have any access to

Got 3 holes could look into a Beananimal (return over the top). As for access, really why?

[badfish!]

Could you make it sort of like a herbie, put a gate valve on one drain to control the flow, (which would eliminate the draining/sucking siphoning noise) then make the other drain about level with the top of the water (in case something blocks the gate valve, you still have an emergency drain)? Does that make sense? We have a herbie style with our overflow box, and the only noise we have is the water falling from the box to the level that we keep the water in the box. You probably wouldnt have any noise at all.

[syncro]

Some info from here might help: http://www.beananimal.com/projects/s...ow-system.aspx

A standpipe can only run silently under two conditions. 1) The volume of flow is low enough to allow the water to cascade down the walls of the standpipe, leaving an undisturbed column of air in the middle. When water falls vertically down a pipe, the water will adhere to the pipe's walls until the pipe's cross sectional area is about 1/4 full. At any higher volume the flow starts to become turbulent and traps air. The trapped air creates slurping and gurgling noises. 2) The volume of the flow is high enough to keep the pipe entrance submerged, creating a full siphon.

[damtrees420]

so i tested the herby and seemed to work just need to buld a small box around one of the drains 8x8x10 but how far over will the water flow to set the water hight ? and were in edmonton can i get a 1 1/2 gate valve in plastic

[reefwars]

use to get mine at marine aquaria they always seemed to have some in stock