Originally Posted by antmagrat
...My fresh water tank in my Caravel is scummy. Can I just put some bleach in the water and run it through...
chlorine can be used to sanitize the WATER inside a tank...
and can effectively sanitize water lines, fixtures and the tank itself...
IF the tank is clean already.
but if the tank as an algae layer, dried sediments, or very much remnants of algae and crud and scum...
simple chlorination won't solve that.
and while the linked a/s guide is correct for a tank that is relatively FREE of organic matter (SCUM)...
the chlorine concentration is much higher when STUFF is present in the water or tank
the tank needs to be mechanically or chemically cleaned and drained IF it has an algae layer or residual scumncrud.
depending on HOW MUCH scum and crud this might involve cutting a hole in the tank for cleaning and draining
or multiple fills and drains.
???how do u know there is scum inside the tank??