I've heard others comlain that it messed with their ACII unit as well... the arching in the unit causing the ozone interferes with the x10... The filter should work (let me know if it doesn't)!
I also noticed a drop in foam production from my skimmer when it's on, however the foam that does come out is much thicker and smells like @#$#$%!
(I've heard people say it's running more efficently FWIW...
I've been using the same unit for a while with no complaints.