Siphon tube overflow

[chrisyew]

Hi,

May I know for those using the Siphon tube (not the ibox) for overflow, does it ever break siphon due to whatever reason?

If it does, do you guys have a float switch to stop the return pump so that the main tank will not be flooded?

To prevent the main tank from flooding, is float switch the only alternative?

Thanks.

[ozy]

I realised that the overflow pipe will accumulate air on a rate proportional to the water flowing through. Mine used to break siphon every 1.5 months. Actually to solve this problem, I connect my air release valve of the overflow pipe to the air intake of a powerhead. In this way, any air accumulated will be drawn out by the powerhead. Now I am not worried about siphon breakage.

hope this helps.

[chrisyew]

I realised that the overflow pipe will accumulate air on a rate proportional to the water flowing through. Mine used to break siphon every 1.5 months. Actually to solve this problem, I connect my air release valve of the overflow pipe to the air intake of a powerhead. In this way, any air accumulated will be drawn out by the powerhead. Now I am not worried about siphon breakage.

hope this helps.

Thanks for the info.

So after doing that, it has not break siphon so far?

[ozy]

So far 4 months liao. I hope I was clear in my explanation...

[chrisyew]

So far 4 months liao. I hope I was clear in my explanation...

Yes clear. Thanks once again.

[ozy]

That's also how i prime the overflow pipe. no more mouthful of saltwater.

Oh yah, one more thing, you might want to shake the overflow pipe once in a while as there may be some small air pockets within at odd places. Not that it will cause the siphon to break, but it does slows the flow rate through the pipe.

[Coolsky]

Hi Guys,

Can you show me how to do a overflow without buy the Ibox. Need to do 1 for my 3Ft tank. Pls kindly teach me.

[jc85]

Hi Guys,

Can you show me how to do a overflow without buy the Ibox. Need to do 1 for my 3Ft tank. Pls kindly teach me.

Check it here.

http://www.sgreefclub.com/forum/index.php?showtopic=32506

[Coolsky]

Hi Bro,

Thks for that site. Need to try out if I can do that. Have neber DIY b4.

[Skipper32]

bro, hope u enjoy ur DIY. I had some problem with mine a few days back....the returning (to sump from my DIY pipe) is too slow...was OK for many mths and allof a sudden my canister became powerfl and the amout od water it returned to main tank increases and my pipe can't take it....took 2hrs to clear everything up ... thinking of doing another pipe... this time try using smaller pvc pipes.