Peggy,

Will vinegar cause corrosion problems in aluminum holding tanks? Seems like
it might, but I don't know.

Steve H.

"Peggie Hall" wrote in message
...
canalman wrote:
It has been suggested by someone who *knows*, that vinegar is a good
medium for clearing out persistant residue in a narrowboat toilet
holding tank.

I don't think so. Vinegar will dissolve sea water mineral buildup in
hoses, but I've never heard that it will dissolve sludge in holding tanks.

Holding tanks should be at least nominally flushed out with a couple of
gallons of clean water down the pumpout fitting (because that sends it
directly into the bottom of the tank to stir up the sludge) after every
pumpout...and thoroughly flushed by doing that several times--until
what's being pumped out is only clean water--several times a year.

To my knowledge, there is no other way.


It has been suggested that it wouldn't be a good idea in plastic tanks
as vinegar might harden the seams. Do we have any feed-back before we
try it?

I've never heard that before either. It appears to me that all the
advice you've been getting is bad.

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://www.seaworthy.com/html/get_ri...oat_odors.html