Alan Sugarman wrote:

> Anyway, if I am in open water, I will pump out
> to the sea.

You can't legally dump a tank anywhere the Bay...You'd have be at least
3 miles from the nearest point on the whole US coastline to dump a tank
legally...which means a looong trip each way from Annapolis. But I see
from your comments below that you do leave the Bay, so I'm sure you
already knew that.


> You really have to know more about the Baba 30 set-up to see the issues
> re vents etc. We will get some photos posted so you can see the issue.

If anyone in FL between Palm Beach and Stuart has one, I'll be in that
area the end of this month and would love a first hand look.

> What I do not understand re two vents is how do you assure there will be
> a flow - i.e. how does one make one vent and in and the other an out
> without some type of fan.

One doesn't. :) Depending on air pressure differentials and a whole
bunch of things a physicist could explain better than I can, a single
vent that's short enough, straight enough, horizontal enough, and has a
large enough diameter will allow a tank to "breathe," especially if the
vent is forward so that air is being pushed into the tank while the boat
is underway...two vents can create a draft in some
circumstances--similar to cross ventilating a room by opening two
windows, even when there's no breeze...but there is no way to create an
"in" vent and an "out" vent without a fan to pull air in one and out the
other.
>
> I have an existing vent on the side of the cabin top. I was going to
> replace that with a vent just under the toe rail.

Good plan...'cuz vent line that vertical cannot passively ventilate
anything...it can only be the path for air forced out by incoming waste
and/or pulled in by the pumpout or discharge pump as waste is pulled
out. I'd make the new vent 1" ID, and put it as far forward as possible.

> As to the LectraSan - which is plenty expensive...

About the same amount you're spending to import a tank from the UK plus
the Sweetank. But the rest of your points are well-taken. It was just an
idea that may work for someone else here.

> I really hope that some engineering can be done to miniaturize the
> LectaSan - but Raritan does not seem to be into that.

It's already as small as it can be...it has to be big enough to hold 2-3
flushes averaging .5+ gal without discharging untreated waste.

> I do not see why there cannot be some more investment into the pumps and
> other components in marine sanitary engineering.

For instance?

> I have hoped that Boat
> US/ EPA would fund this research and development if EPA wants to impose
> these basically politically correct restrictions on us anyway.

It's not the EPA, Alan...the EPA doesn't make law. It's over-zealous
uninformed/misinformed environmentalists who have forced all the PC
restrictions on us. And since there are a LOT more of them than there
are of us (fewer than 1 million boats big enough to have toilets in the
whole country) politicians pander to 'em. It's not about doing "what's
right," it about getting reelected. There aren't enough of us to make a
bit of difference in any election bigger than one for president of a
sailing club...but the well meaning but misguided PC environmental
voting blocks are big enough to have a lot of political clout...and they
use it.

--
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/store/customer/product.php?productid=40&cat=6&page=1
http://shop.sailboatowners.com/books/detail-books.htm?fno=0&sku=90&cat=1304


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Received on Tue Jan 03 13:10:08 2006