Is there any magic to this thing? My old hayward, pop the cap on and screw it down. I pulled the thing off, moved the oring around in a different spot and screwed it back down again and now it seems like it might be better, but this is really an exercise in frustration. I feel like I'm doing something wrong? I also tried to move the locking ring to wear the lock tap should be on the bottom case if it was there and then it just leaked and leaked so I'm guessing it needs to be tighter than that.