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From: Ed Kelly (no email)
Date: Sat Aug 17 2002 - 17:39:50 EDT
Keith forwarded your question to me, I sent a reply to him to be posted
on the list. Here 'tis:
The simple solution would be a tank level monitor. However, a strong
solution of low suds detergent (Wisk is good) and water will take care
of the problem. Waste contains animal fats that can build up on the tank
walls and stain the plastic. Detergent emulsifies fats...so this will
clean out the tank, but any stain will remain and require at least a
couple of gallons of bleach in a 10 gallon tank (only 10 gallons on a
35' liveaboard? They must spend more time going back and forth to the
pumpout than cruising!) to remove:
Fill the tank about 2/3 full with it, then go out and spend a couple of
hours being rocked and rolled by wave and wake (if it were a planing
hull boat, I'd say go fast and zig zag a lot) so that the solution can
really slosh around in the tank. Let it stay in the tank for at least 24
hours...longer is better. Pump out and THOROUGHLY rinse out...then
re-treat with K.O. or Odorlos, whatever he's using.
As I said, it would be just as easy to install a tank level monitor. I
recommend the Snake River AcuGage...the sender goes on the outside of
the tank, so it never comes in contact with the contents. Best system on
the planet IMO. Check it out on their website at
http://www.snake-river.org.
That's where my previous reply ends. To add a little more...
You CAN use bleach to remove the last of the stain, but it should not
remain in the tank more than about 4-6 hours and MUST be VERY thoroughly
flushed out. Do it only if you still can't see the level in the tank
after the detergent cleaning.
Peggie Hall
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