pvc overflow

[kriskatatstrophic]

i just put together a pvc overflow from a design i found on the web ill post some pix



on my sump just to show how it sets in the aquarium it dosnt fit the sump well

 

[dcantucson]

Interesting. Looks like a maze. :) Let us know how it works for you.

 

[the reef kid]

I knew it was a good idea drilling the tank...that looks way too complicated for me. Keep us updated on how it works though.

 

[kriskatatstrophic]

i dont know the exact gph of the overflow but ik that it has a decent flow and holds a siphone wen the water drops below the intake

 

[Wes888]

When I had a 40g running parallel with my main tank, I used the same siphon design between the two tank as well. Worked really well. Never lost the siphon between the 2 tanks.

 

[kriskatatstrophic]

here are some pics of my diy pvc overflow

FTS i know its crocked i just haven't bothered starting it yet


entering the sump ....there is quite a bit of flow


shot of the sump


return line flexible high pressure tubing i think..lowes was out
of regular tube so i had to buy this

all together I'm pretty impressed with the overflow like i said before i don't
know the GPH but it seams like a lot of flow to me it keeps up with a 300
GPH pump turned down a lil I'de say its closer to 250GPH...i think all the pvc
and elbows came to like 12$ I'm much happier paying that instead of 130$ for
a HOB overflow box

 

[Bifferwine]

I would suggest making the pipe that enters the sump longer, so that it discharges underwater. You are going to get a lot of noise and splashing if it opens up above the water like that. But it looks good!

 

[kriskatatstrophic]

I just fixed that biff i made the pipe that goes into the sump underwater

 

[bjohanson1234]

Another thing I would like to point out, is in the last picture. Those fittings arent for that tubing. Those are PVC 90's. I wouldnt trust the glue to hold the tubing in. Especially under the presure of the return pump.

But the overflow looks very nice. Glad it is working out for you

 

[kriskatatstrophic]

if the water discharges below the sump water the bubbles from the over flow break the siphon i had to go back to the shorter pipe

 

[bjohanson1234]

You could try putting a filter sock on the end of it. It would help keep the splashing down.

 

[kriskatatstrophic]

yahh ill try that ill have to pic one up at my LFS but i cant today so it'll have to wait thanks for the suggestion

 

[SigEpLucas]

I just made this same overflow for my aquarium and I've only dry fitted it and tested it with a trash can and I'm going to cement it tomorrow before I start using it....do you think if you put the return below the water, and then put another elbow under the water that would stop the bubbles from breaking the siphon?

 

[kriskatatstrophic]

probably im am curently not using this set up beaces wen i made the sump i used the rong silicone and killed alot of my fish MAKE SURE YOU USE AQUARIUM SAFE SILICONE that idea might work just test it in a trash can first

 

[SigEpLucas]

I'm sorry to hear about your tank...