Hey - nobody has answered ther question about the small thru-hull!
I'd like to know myself.

Yep, Marine Sanitation.

My system is simple.  The hose from the toilet goes to the holding
tank.  The holding tank discharge comes out  - and loops UP to avoid
liquid stading in the discharge hose after pump-out - and to a Y-
valve.  One side of the Y goes to the thru-hull pump-out on deck.  The
other side goes thru a macerator pump and exits via an underwater thru-
hull WITH a valve.

When I need to pump overboard (seldom) I change the Y-valve, open the
seacock and start the macerator pump.

Since you're re-doing your system, I advise putting an odor filter in
the tank breathing line.  They are available off-the-shelf.



On Oct 5, 8:28 am, David Oates <[email protected]> wrote:
> Waterguy, it's always good to hear from you.  I didn't mean to set up the 
> system that you describe, I meant the system where everything goes to a tank 
> and the Lectra-San processes it as a batch when appropriate.  These systems 
> do not hold the processed material, but pass it out as it is processed.  I 
> talked with the Raitain people and they said I could put together a system 
> myself using there parts and my current holding tank.  I am troubled with a 
> more important problem at the moment (see the thread about my 8.2L DD using 
> oil), but when I get back to the "nice-ities" I will definitely discuss my 
> sanitation plans with Marine Sanitation as you suggest.  Thank you for that 
> contact.
> DavidO
> --- On Mon, 10/4/10, waterguy <[email protected]> wrote:
>
> From: waterguy <[email protected]>
> Subject: [UnifliteWorld] Re: Q's re plumbing path for Holding tank out
> To: "UnifliteWorld" <[email protected]>
> Date: Monday, October 4, 2010, 10:06 PM
>
> David:  I urge you to call Marine Sanitation in Seattle and discuss
> your options. 1.800.624.9111 7:30 to 5 Pacific, M-F. These guys are
> real pros and they are very helpful.  I had a Lectra-San treatment
> system in my old Carver Mariner, and was going to put a holding tank
> on board and route the output from the Lectra-San to the tank while I
> was in no-discharge-zones (Lake Washington and Lake Union in
> Seattle).  Marine Sanitation told me that was a very bad idea.  Why?
> Well, think about what survives the treatment equipment:  The
> toughest, nastiest, hardest-to-kill bacteria.  Which is exactly what
> you don't want in your holding tank following you around like Mary's
> little lamb.  Don't do it, unless you want the Green Slime Monster
> crawling out of your bilge one day, shaking your hand, and asking to
> marry your daughter . . .
>
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