I would suggest you either lock it (would a tie-wrap (zippy-tie) suffice?) or 
remove the handle.  Most valves have a removable handle.

My black water discharge valve is a Wilcox bronze seacock and I just leave the 
handle off and stowed elsewhere.  I also tighten the adjustment nuts to prevent 
seepage.  

Although the CG has rarely checked my black water system, and never in the last 
8 or 9 years, the handle was always removed and they always passed the system.  
It has been most often checked by other types of cops, the harbormaster in 
Provincetown MA even demanding I flush down dye tablets to prove a holding tank 
was on line.  That one was the start of a chain of events that eventually led 
to the curing of my decades-long sciatica pain, so you never know...

Of course the whole concept is silly as we can actually open the valve any time 
we wish.  

Norm
S/V Bandersnatch
Lying Gloucester MA


----- Original Message ----- 
From: 
To: [email protected]
Sent: 7/9/2010 5:29:18 PM 
Subject: Re: [Liveaboard] Easy CG Boardings


Norm,

I am in Florida. My head has a Y valve one side to holding tank and one side 
over the side. I leave it in the holding tank position, but it does not have a 
lock. Is a lock required?


Thanks!


Tom
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