Check Valves

[PaulineMi]

I've put sponge filters in the family room tank. The air pump will go in the cabinet, under the tank. Where is the best place to put the check valve? I read that it should go six inches from the air pump but want to be sure before I cut airline.

[Mugwump]

I guess there's a 'preferred' spot for it..?...but I just put mine just below tank level...( out of sight)

They're supposed to work anywhere...I put a drip loop and follow with the check valve...but it's redundant for me my pump is about the tank levels.....

others will chime in I'm sure....?

[LizStreithorst]

I don't think it much matters.  6" sounds fine to me.

[wsantia1]

Mine is located somewhere between 6 to 12 inches.

[PaulineMi]

Okay, thanks all. 

[lgelb]

I put mine right around 6"

[PaulineMi]

6" it is.....and thanks.

[Mugwump]

 ...I looked around and could not find any recommended placing of a check valve....it just shows cutting the line most anywhere between the tank and air pump....yada yada...

so anywhere is safe...

[PaulineMi]

I agree Jon.  I looked before I asked and only found one actual recommendation, the six inch one.  So thanks....I put the valves on the airlines yesterday and all is well today.