How many floors / levels does my black tank have?

[Tom Warner]

Henry you probably have the Dupree manual valve on your black water tank.
if its not filled yet, take the two screws out of the housing just below
the handle and remove the guts. Lube it up good with silicon grease and put
it back together.

Tom
1982 FC35
Vernon Center,NY

At 07:53 PM 5/14/2005 -0500, you wrote:
>Tom. Your idea sounds great provided the valve will close enough to hold
>15 or so gallons. I thought the valve was an all or nothing type thing
>meaning that it either works, or it doesn't, but to my surprise it seems
>to hold some water. Can you explain why/how it could behave that way and
>what to do to fix? Thanks for your advice. Henry@... 1979
>FC/SB 35, McAllen, Tx
>
>Date: Fri, 13 May 2005 23:16:13 -0400
> From: Tom Warner
>Subject: Re: How many floors / levels does my black tank have?
>
>Henry do yourself a favor and do this. Put a 1/2 cup of detergent in your
>black water tank with about 15 gallons or so of water.. Add a couple of big
>bags of ice cubes and take a 1/2 drive and then fill the tank and
>dump. Clean tank
>
>tom
>1982 FC35
>Vernon Center,NY