[C320-list] Water Tank Gunk

[Gary Magnuson]

When I flushed the RV antifreeze from my water tanks last week, it took 
several cycles of adding some water, pumping down, then strainer 
cleaning to remove black sludge from both the bow and stern tanks.  The 
anti freeze in the bilge, also looked like a science project, with small 
white cultures floating around.  Both tanks now have a pint of Clorox 
and full to the brim, while she sits in her slip for a week or so.  When 
we get back, I will flush and rinse to get the chlorine smell out.   
Anyone had similar experience or different solutions?  Some one 
suggested flushing with Hydrogen Peroxide, instead of Clorox.   I have 
considered using a solution of algicide from my pool chemicals, but not 
sure if it would be safe to brush teeth with later, or hazardous to the 
marine life since it has the warning on the label. The pool calls for 
two oz:10,000 gal of water.   In the storage areas under the seats in 
the main saloon, we managed to spray them with Superclean and it removed 
all the mildew very easily. The area around the batteries and holding 
tank is another story.  I feel like a pressure washer would be easier.   
Any suggestions for closing the boat in the fall, and spraying the 
storage surfaces with something like Lysol to stop the growth all 
together??

Thanks,

Gary Magnuson
Bayfield, WI.
Time A Weigh
1995 320 # 205
-- 
Gary Magnuson _/) PO Box 55 Hudson, IL 61748