Reverse Siphoning

[reefreak]

Well I was testing my 55 gallon soon to be reef outside and i turned off the pump in the sump and it began to reverse siphon just wondering is there any way to prevent this?

[Kristy]

Yes!

You drill a small hole in the return line just below the water's surface level. That breaks the siphon.

[Mr Cob]

...and even better, drill two small holes just in case a snail is chilling on the first hole :)

[reefreak]

The part that is in the tank or the one on the pump

[polarbear]

the part thats in the tank. This way when the water drops below that hole it will break the siphon. you will get a little bit of water siphoning back into the sump but not all of it once it reaches the hole you drill

and yes drill 2. it works better

[reefreak]

Ok Does anyone know how to quiet it down

[Scream311]

14585

Heres a Pic of what a Basic Return Looks like, put a small Hole where the Elbow is that is before the cut off pc of pipe Opposite of the Barbed end