continous syphon

[dixienut]

i just hung a used refugium, on my 30L tank i know nothing about these it has a pump to pump water back to the tank, how do i start the syphon (big large u shape tube) tyied using a air hose thru it to start syphon that i saw somewhere but it didn't work.. any suggestions? or do i need another pump the refugium is a ecosystem 40 without skimmer.. downloaded the manual but its vauge about this part.

[Amphiprion]

Are both ends of the tube submerged in water? That is the only way that will work. You are basically trying to remove an air bubble to complete the siphon. I also recommend an aqualifter pump to ensure that it retains that siphon.

[dixienut]

thanks, the other end wasn't under, got it going but as you said big air bubble in the top of arch is the ok? or do i need to remove it and how?
what is an aqualifter pump? where do i find one?

[Amphiprion]

You use the airline tubing to literally suck it out. An aqualifter pump basically does the same thing--it is the size of an air pump but has a suction. It make a continual suction so an air bubble won't form and break the siphon. You can find them on www.marinedepot.com as well as other sites. Pretty common piece of equipment.