Any advice here would be appreciated. I have a Pentair Sta Rite System 3 Cartridge filter and last year I noticed it would leak just a few drips from the midsection of the filter body upon start up and shut down, but would stop after a second or two. I assumed this was an indication that the o-ring (cord ring) was going bad. The filter is about 7 years old so I figured it wouldn't hurt to replace it. I got a generic one from Amazon thinking that would be good enough. The Pentair owner's manual specifically states to NOT lubricate the o-ring so I didn't and it leaked multiple constant drips. I took it apart multiple times to make sure it was seated properly and every time it leaked. Eventually I put the old one back in and it was fine (except for the few drips on start up/shut down). I know many say that these o-rings need to be lubricated with silicone or teflon grease. Should I put the new one back in with some lube (against Pentair's recommendation) or just leave the old one alone and not worry about it since it's only a few drips? Maybe the generic o-ring is an inferior product and I should just forget about it and buy original from now on.