Sea water incursion happened to us on the way back from Bermuda in 2009. Half
the water supply gone. Now we switch to internal vents after filling when
going offshore.
David F. Risch
1981 40-2
(401) 419-4650 (cell)
Date: Tue, 8 Sep 2015 13:53:36 -0700
To: cnc-list@cnc-list.com
Subject: Re: Stus-List Water tank x-connect
From: cnc-list@cnc-list.com
CC: svpegasu...@gmail.com
On Pegasus all 3 tanks have a common vent that exists at the head sink. I
wouldn't want an external vent for my potable water, due the possibility of sea
water contamination. I fill my tanks starting with the port tank. Which is the
farthest from the vent.
Doug MountjoysvPegasusLF38 just west of Ballard, WA.
------ Original message------From: Robert Boyer via CnC-ListDate: Tue, Sep 8,
2015 12:22To: cnc-list@cnc-list.com;Cc: Robert Boyer;Subject:Re: Stus-List
Water tank x-connect
On my LF38, all three tanks have their own individual vent as they should. The
vent line follows the inlet hose and exits the hull just below each fill
connection on the deck. The original vent lines are 3/8" gray plastic piping.
A good venting system is necessary to get good flow into and out of the tank as
well as insuring that the water pump does not pull a vacuum on the tank and
cause it to implode--I have seen this happen on poorly vented holding tanks
when emptied.
BobLF38 "Rainy Days"
On Sep 8, 2015, at 2:55 PM, Josh Muckley via CnC-List wrote:So I'm doing some
water tank work and I've confirmed what I already suspected. My tanks are
cross vented to one another through a low point loop. It appears that I could
in theory fill all my tanks from one deck fill port despite having a fill port
for each of my tanks. I'm thinking that tracking tank level is a challenge
when they are all sluicing between one another.This doesn't seem advantageous.
Why would the manufacturer do this. Is there a problem with me undoing it?Josh
Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD _______________________________________________
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Bob Boyer
S/V Rainy Days (1983 C&C Landfall 38 - Hull #230)
email: dainyrays@icloud.comblog: dainyrays.blogspot.com
"There is nothing--absolutely nothing--half so much worth doing as simply
messing about in boats." --Kenneth Grahame
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