MJSI offers the HydroClean water fill valve, designed by a fourth generation plumber, which saves water, detects leaks, cleans the tank and is easy for customers to use, according to the company. It features nine issued or pending patents. “Our life-cycle testing showed that the HydroClean flushed over 250,000 times without a problem,” said Michael Schuster, plumber, inventor and president of MJSI.