Quote:
Originally posted by melev
That is a screw in cap, used to close off plumbing. What I did was drill a 3/16" hole in the top, and set it on the pipe to make it silent.
After a while, saltcreep will glue it to the pipe and your skimmer will work less well (vacuum-related). Eventually I cut a piece of rubber and placed it inside the cap to act as a cushion against the top edge of the gray pipe. This keeps it from vibrating and the drain stays silent.
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Marc,
follow-up question. The ER manual recommends that the drain be cut so that it is above the water level (I angled my drain to accomplish this). However, the water splashes into the sump, which is not only loud, but causes a lot of microbubbles. When I lower the drain so that it is below the water level, it is hard to adjust the water-level inside the skimmer.
Does your screw-in-cap allow the drain to be underwater and adjust the water-level inside the skimmer?