I did one like this except I did a brass nipple on the area where the coupler and pipe come together. For the brass nipple I had to tap the hole to be able to screw it in no big deal with a drill and a tap bit.
The bubbles go up and the water flow goes down. The bubbles will break up on their own from the turbulence of going against the current. No bio-balls necessary.
The bubbles go up and the water flow goes down. The bubbles will break up on their own from the turbulence of going against the current. No bio-balls necessary.
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