Luckily I use well water so pretreatment is not necessary, I am able to add it directly to the tank. The drip system/auto change will take care of water changes, and I was planning on using a canister with sponges and floss for vacuuming, and maybe a micron filter bag over the return for a final polish. The concept is nice but I still think its overpriced. Likewise, usually have 10+ tanks running varying from 10gal QT tanks up to 200gal so any timesaver is great, I just tend to look at existing designs and build my own stuff for less $$.