[C320-list] Fresh water head-flush plumbing

[Steve Magennis]

Sorry, Len, but the sink water will entirely flush the sea water out of
the head intake line.  This is because you close the through-hull when
you flush the head.  The route of this flush water is sink drain to the
through-hull / T fitting, through the head intake line through the pump
through the flush line through the head to the holding tank.  At most,
a thimble-full of seawater would be trapped at the top of the through
hull below the T.

Steve
Alchemist #909

--- Len <aqua5len at gmail.com> wrote:

> Well, there's old seawater still in your head intake line (from when
> you DID
> use seawater); just using the sink faucet into the head does not get
> fresh
> water into that seawater intake line---that's still the smell source.
> However, when you add the simple connection from sink drain to head
> intake
> line, freshwater flushes out that old seawater and keeps freshwater
> running
> through all lines; if you use seawater occasionally  (e.g., run short
> of
> freshwater, etc.) the next time you flush with freshwater all lines
> are
> cleared of seawater smell.
> 
> Len
> Aqua5  #1070
> 
> 
> On 7/29/06, Adam Weiner <esquirecatering at rcn.com> wrote:
> >
> > OK, I am confused.  If you flush your head with fresh water from
> the
> > faucet in the head sink, and you never open the thru valve for the
> head,
> > how in the world does seawater, and its sell, get into the head
> piping?
> > If you only use freshwater, there can't be saltwater in the system.
> >
> > In seven years the only time I have used salt water for the head is
> when
> > we have been on extended trips and were conserving fresh water. 
> Other
> > than that there hasn't been seawater in the head plumbing system.
> >
> > Adam
> >
> > -----Original Message-----
> > From: c320-list-bounces at catalina320.com
> > [mailto:c320-list-bounces at catalina320.com] On Behalf Of Len
> > Sent: Saturday, July 29, 2006 9:39 PM
> > To: C320-List
> > Subject: Re: [C320-list] Fresh water head-flush plumbing
> >
> >
> > Not good---still leaves seawater, and smell, in head piping.
> >
> > On 7/29/06, Adam Weiner <esquirecatering at rcn.com> wrote:
> > >
> > > Use the faucet in the head sink, a lot easier, cheaper, etc.
> > >
> > > Adam
> > >
> > > -----Original Message-----
> > > From: c320-list-bounces at catalina320.com
> > > [mailto:c320-list-bounces at catalina320.com] On Behalf Of Len
> > > Sent: Saturday, July 29, 2006 2:11 PM
> > > To: C320 List
> > > Cc: belairlk at gmail.com
> > > Subject: [C320-list] Fresh water head-flush plumbing
> > >
> > >
> > > Has anyone connected the head sink drain to the head sea inlet
> line
> > > for freshwater flushing?  Saw this on a boat:  tubing "T'd" into
> sink
> > drain,
> > > then "T'd" into head inlet line, with valve to open/close.   To
> flush,
> > > close
> > > sink drain valve and head inlet valve then fill sink thumb-deep
> and
> > > flush head with fresh water.  Prevents smells of seawater
> organisms
> > > from seawater in plumbing lines.
> > >
> > > Like to know your experiences before installing on my boat.
> > >
> > > Len
> > > Aqua5  #1070
> > >
> > >
> >
> >
> 


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