Another wet/dry question

[MilitantPotato]

Well, i tried using a check valve on my overflow while using a venturi from a powerhead, but the check valve is to much resistance for the powerhead to handle, made it useless.

Instead I made sure the end of the tube inserted into the powerhead is lower then the water level gets when the power turns off, so the syphon in the air line never gets broken.

I'm using a slightly different HOB overflow, but the idea is the same.

The syphon pump icthyophile linked to is great, but I already had a powerhead w/ venturi and they end up lasting longer than the aqualifer from what I've read.

 

[BIG-E]

This is my first post.To get my syphon started I put a hose in the tube and suck out the air it works every time.

 

[rallysman]

This is my first post.To get my syphon started I put a hose in the tube and suck out the air it works every time.

That's what I have been doing. Once in a while I get air in the over flow and have to suck it out again. That's why I'm wanting to try the powerhead option