[C320-list] Water Tank Gunk

[Brad Kuether]

In the owners manual it talks about how to "shock" the tanks with 
clorine/water solution, and then sweeten it with vinegar.

I left the mixture in for half a day, and then pumped it out.  I had to 
clean the screen  A LOT while pumping water through the system.  (10-12 
times)

I just kept moving water through until it became really light.  I suspect 
there is more in there but its good for now.

Its a huge pain, but you have to do it....  Otherwise you will continue to 
clog, see black stuff in the screen, and have skanky water.

-Brad, Mary, Monica, and Jarod
"Independence"
2004 Catalina 320 Hull 1006
Middle River, MD


----- Original Message ----- 
From: "Gary Magnuson" <gary.magnuson at frontier.com>
To: <C320-List at Catalina320.com>
Sent: Friday, June 15, 2012 10:16 PM
Subject: [C320-list] Water Tank Gunk


> 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
>