I used quotations around "wrongs" and did not intend to say whether or not socks are wrong.

I have several things I am upgrading and redoing with the rebuild. This is one thing I considered.

Just calling them "wrongs" to shorten things up.


Thanks.

It was to say "would not go without"

Damn auto correct

ah, gotcha :-)

I use 2 4" socks in a setup like Delphinus described and they work fine for me. I change them after they begin to overflow, but I don't rush to do it. They catch the big crud and are easy to launder once a month or so. I keep about 20 in rotation.

I use the 4" sock and find it keeps the DT pristine, yes it's a PITA to turn them inside out for washing but totally worth the effort in my opinion. I rotate 8- 200 micron. I tried not using them but could see the difference in the DT after only 1-2 days. Yes! I would say use them.

We use 150micron mesh socks, not the felt type.

Any advantage to the mesh ones

Also wonder if any advantage. I assume better flow through as thinner?

I think mesh ones are just basically higher micron, they don't clog as quick but also won't filter things quite as fine. I imagine they clean easier as well.

If you are going to use a filter sock, I would recommend going with the 7" size vs 4" to last longer before changes. I use a 7" 200 micron felt sock with my 130 g, and it lasts about a week before it needs to be changed.

If you do a search there have been a few threads on filter socks recently, and how to clean them, etc.

I only started using filters socks recently. My sump is definitely cleaner, and my skimmer neck doesn't accumulate gunk on it as quickly, so it requires less cleaning, too. And for sure my water in the display tank is clearer, with less fine particulate noticeable in the flow stream.