I understand and I believe my skimmer is DIY. It is made out of standard PVC. I have searched the brand a billion times over with no luck. The scrubber vs. the skimmer for me would likly point to the skimmer. I believe that the skimmer would be more like steady ground to me. Something that is always going to work. The scrubber in my mind hasn't had the time out in home tests and could still have the reverse effect. This is just my .02 I believe the skimmer can't fail unless a person just puts it in and forgets about it for well past a couple months. As for the scrubber, I think that if left for just the right length of time without maintenance, it could leach right back in the DT. Atleast with most skimmers, you can drain the collection cup directly into a seperate collection area, basicly allowing for little to no maintenance for some time without ill effects. Again, just my .02 I'm sure someone might correct me, or hopefully jump into the thread and help us on both of our situations