06-02-2014, 04:22 PM
I have always used Clorox. If used in the proper dosage, it is very effective for sanitizing the fresh water system. The proper dosage is 2oz to 5 gallons of water. According to Peggie Hall, a leading professional in Marine Sanitation, the proper procedure is to add the appropriate amount of bleach, run the water thru all faucets and wash downs until you smell the bleach. This will kill whatever is living in the tanks or the lines. Leave the system pressurized for 24 hours, then drain the water from the tank or tanks thru the faucets and wash downs. Ad fresh water and flush the system again with fresh water. It would be a good idea to take off all the aerators before you drain the tanks, otherwise whatever has died will be captured there. Shocking the fresh water system once a year in this manner should have no adverse effects. I have used this method for years with no problems.
