I'm thinking of getting a circupool, and I'm trying to figure out the SJ, RJ, or core. The problem is I dont have alot of room for install. The only way I see it working install directly out of the filter. I prefer the RJ with with flow sensor I dont think it would work. Can I still and tap the flow sensor into my existing plumbing? I could do the vertical, but that seems it would be very restrictive. What do you guys think?