[VAC] gray and black h20 tank treatments??

[Rusty Coonfield <rusty@xxxxxxxxxxxxx>]

hello everyone, 
i am full timing in my 76 sovereign and will be leaving it behind for a trip
back east for 10 days. i am wondering what i cauld leave in the tanks to
dissolve the "artifacts of fulltiming" over that 10 day time that would not
damage the seals or other fittings.

thank you all! :-)

-- Rusty, Jennifer & Loch
Sequoia Nat. Park CA
'76 31' International
Sovereign (rear bath)