Review on Fluidmaster 8102P8 Flush 'n Sparkle Blue Automatic Toilet Bowl Cleaning System Refills - 2-Pack by Jake Yap

I've been using this Fluidmaster product in their tank cleaning systems for years, both blue and bleach. Always gets the job done and never damages tank components as the chemical is injected directly into the bowl. These cartridges are easy to replace when they are empty and include a disposable pouch for each cartridge used. USE TIP: To prolong the life of each cartridge, place a piece of waterproof tape over most of the horizontal dispensing holes, located on the long side of the cartridge. *Leave the bottom two slits open* to prevent the cleaning chemicals from being released too quickly, as reported here.