Generates quite a lot of bubbles, however until I get a new sump it is hooked up "outside" the sump and the plumbing for this application is not terribly desirable. Had a hose slip last night and spray some water. Not something I wanted to wake up to but nothing bad. Clamped that on and probably just going to silicone it together, but I dont like that it would be "permanent" that way. I think it could use a mesh mod but skeptical on that process as I dont want to ruin a new pump. Just in the break in period but I dont expect much in the way of waste at this point as it is a fairly new setup with hardly anything in it right now. Any tips on a mesh mod?