Review on Enhanced Fluidmaster 8100 Flush 'n Sparkle Automatic Toilet Bowl Cleaning System with Blue Cartridge by Doug Virden

So I stopped using soluble toilet tank cleaners as they cause the flap to warp and leak. I found it interesting to try this implementation. My installation experience was relatively easy, except that the diameter of the tubing that came with this unit was too small to fit the installed Korky valve. Finally I ripped off the short end of the "in-port" tube from this device which was stretched (slightly wider) and I was then able to just install it on the port of Corky's valve. The other end of the short tubing is then simply inserted into the "inlet port" of this device. The blue cartridge is easy to insert and locks 1/4. It should last 3 months for a 1.6 gallon toilet flush. The black hose was from Corky's original valve, and the white was the unstretched end of the short "inlet" hose I had with the unit.