Just DIY a sump

[aStRoBo|]

Guys, i have a problem with my DIY sump, the pipe where i use it for return from sump, seems to be ###### the water down from the main tank once the powerhead in the sump is off, anyway i can counter this problem? it's the elbow tat is ###### in the water, i noe it's by gravitational force.. how shld i prevent water from going back to the sump if the pump is spoilt or off? i sense flooding will come soon..

[aStRoBo|]

my sump..pls help ppl. really desperate liao.. later i go out it flood den all gone.. shld i get a control valve or something.. i noe nuts about sump functions.. was using a cannister way back..

[Vinoth]

Make a hole near the top of the elbow. The hole should be just below your normal level of water in the main tank. In this way if your return fails, the water level will decrease and the air will be sucked from the hole and the water flow will stop.

[davwong]

Drill a tiny hole at the elbow of your return pipe just below the surface of the water and when the pump stop, the water level will lower and when it reach the hole it wil break the siphon of the water down to your sump.

[CalciumReef]

Another method is to buy a checkvalve as drilling hole in the pipe could introduce tiny air bubbles, but not always the case

[typrobin]

a picture says a thousand words....

[aStRoBo|]

Make a hole near the top of the elbow. The hole should be just below your normal level of water in the main tank. In this way if your return fails, the water level will decrease and the air will be sucked from the hole and the water flow will stop.

bro, so u mean my elbow cannot be in the water?

[aStRoBo|]

a picture says a thousand words....

thanks, i fully understand by seeing this! thanks alot ppl! will go back and modify it..so a small hole will does the trick rite?

[hamannbmw]

i hve seen some tanks which the hole is on top of water level

[ira_one2]

Drill a hole on the elbow in the main tank below the water line. This will break the siphon when water from main tank is sucked back to your sump.

Good luck.

[ira_one2]

Ooops... didn't realize I have not refreshed the page for more than an hour.....

Exactly like what the guys say....

[Siput]

i hve seen some tanks which the hole is on top of water level

Yah! My new tank came with the hole drilled above the waterline; next thing u know when u on the pump, a fountain to beat the Merlion occurs!

Shot a jet of water from my tank onto my dining room floor! @#$X^#^%$!!!

Had to go back and get a replacement joint with no hole (I position nozzle very near the water line now to create ripples effect and get very nice shadows playing across the LR/corals).

Cheers!

[aStRoBo|]

any bros to show those drilled hole photos in their elbow is very much appreciated. and thanks for all the help given!

[Siput]

Easiest is use an electric drill...size of hole depends on you...but shld not be too small like pin-hole...

[Blitzkrieg666]

any bros to show those drilled hole photos in their elbow is very much appreciated. and thanks for all the help given!

i got electric drill... want to borrow?

[aStRoBo|]

i got electric drill... want to borrow?

Thanks bro, i think can heat a screwdriver and pierce a hole into it. Thanks.

[delirium]

For my return pipes got no hole. Its placed higher just under the water surface. So once pump goes off and water drops, it breaks.