If I had a, let's say, lavac toilet, and a dedicated freshwater tank
for flushing - with a manual pump, why wouldn't it work? Since the
freshwater tank would not be pressurized, wouldn't that solve the
problem? Or are there other issues in regards to salinity that cannot
be worked around?

I'm not trying to re-invent the wheel, just curious. The idea of being
able to use the highly praised Lavac with freshwater and a manual pump
sounds like it might be a good combo.

My boat has more fresh water than I can ever use.






On Wed, 19 Jul 2006 22:56:18 GMT, Peggie Hall
wrote:

Don wrote:
I am installing a new head and am going to use fresh water for flushing
getting away from sal****er.

You aren't gonna connect a toilet designed to use sea water to your
fresh water system, are you? That can't be done without risk of
contaminating the potable water supply with e-coli, damage to the
toilet, or both...and every toilet mfr specifically warns against it.

ONLY toilets designed to use pressurized flush water can safely be
connected to the fresh water system.


I would like to know if the fresh water
will disolve the build-up inside the hose...

Nope...

... or do I need to replace the
whole sanitation line.

You don't have to do that either. A 12% solution of muriatic acid in
water will dissolve it. Or, if you'd rather not use muriatic acid,
repeated doses of white vinegar will do the trick.

It's about a 20 to 25 foot run to the holding
tank.

Unless it's all downhill, that's at least 4 x further than all but a few
high end electric toilets can move bowl contents...you'll always have
waste sitting in the line, and that will result in stinky hoses. The
optimal distance from the toilet to a tank is 6' or less...10' is the
absolute max.

So I think you may need a bit more help than you asked for. If you'd
like to email me, I'll be glad to help you spec out a system that won't
create more problems than it solves: phnlr (hyphen)misc(at) yahoo(dot)com.