[Public-List] Waste holding tanks

[Gordon Laco]

When we got SURPRISE she had a porta potti for a head and a perplexing 'foot
bath' under the main cabin floorboards.

Someone on this list clued me in to the fact that the foot bath was actually
the holding tank option offered in liner boats.   Way back then the company
that made the plastic tops for the tanks was still in business, and happily
still had the pattern.  I bought one and installed it.  We've been very
happy with the tank but for the fact that nothing seems to stick to the
unearthly substance the top is made of.   I've lost track of who I bought it
from so I can't ask them.

Kris - do you know much about that stuff and what I should be using to bed
it?

Anyway, we've found that Lifecaulk, a product I normally am not so fond of,
comes closest to sticking and we find we get about three seasons before the
tank starts to leak when the boat is heeled.  Strangely enough, even when it
is leaking, the tank never smells.... Long may that run!

Gord #426 Surprise


On 26/04/11 3:33 PM, "Kris Coward" <kris at melon.org> wrote:

> 
> Odd.. I've got one of the liner boats, but the cover on mine looks to be
> HDPE. Removing the thing is one of my many back-burnered projects now
> that Candy Cane's got a composting head (but might not stay on the back
> burner for long now that I know that peeling the thing off doesn't open
> up a hellmouth).
> 
> Cheers,
> Kris
> 
> On Tue, Apr 26, 2011 at 07:54:41AM -0400, Mike Lehman wrote:
>> For those of you that have an Alberg with the waste holding tank beneath the
>> floor boards installed by Whitby, here is a photo of the underside of the
>> aluminum tank top. This applies only to the later model ???liner??? boats
>> where Whitby converted the storage area under the floor to a holding tank by
>> simply installing an aluminum cover over the area and caulked it and used pop
>> rivets to hold it in place. Check out the corrosion, particularly to the
>> pickup tube. There was no way that this tank could be emptied. The lid was
>> easy to remove by drilling out the heads to the rivet and prying it off.
>> Total removal time was less that 10 minutes...but then again, demolition is
>> my specialty. There was basically compost in the bottom of this tank and no
>> odor.
>> 
>> http://alberg30.org/maintenance/disorganized/head/under-sole/Waste_Tank_lid.j
>> pg
>> 
>> 
>> 
>> Mike Lehman
>> ~~~_/)_/)~~_/)~~~
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