bubble tower

[mark]

When I first did my returns had both 2" pipes going direct to sump with lots of bubbles so did a tower.

Got a 10x10x16h bucket (dog biskets pail), drilled some 1/2" holes on the sides at the bottom, placed in sump with returns into it. Microbubbles were just about all gone. Added large 100 micro bag over both drains and that has the bubbles pretty much eliminated (plus the benifits of the bags).

Seen nicer version where you took two pieces of Plexiglas and form a box in the corner of the sump with notches on the bottom (think upside down overflow tower) and run returns into that.