If you have time and do not mind could you ellaberate on this comment? I want to order for my return lines and skimmer outlet mainly for micro bubbles, but have never used nor needed one until now. I am also curious about how to secure to the lines as they are no more than a few inches and I keep seeing ones for 4 - 7 inches. There are some with drawstrings that look like they would work, but am skeptical that they would hold with all of the flow and all. What are your suggestions? I also see that they should be seated in such a way so they do not overflow outside of the sump....how does this work.
Thanks sooo much, MH