Everyone will jump on this but nothing beats a little Clorox flushed in or 
poored into pump out.  Jerry

Sent from my iPhone

> On Sep 3, 2014, at 10:44 AM, Tim Goodyear via CnC-List 
> <cnc-list@cnc-list.com> wrote:
> 
> Hi Bev,
> 
> A couple of things from my experience of a smelly tank after launch this year:
> - If the holding tank is smelling, make sure your holding tank vent is 
> working.  Anaerobic bacteria cause the particularly noxious smells; they are 
> replaced with aerobic, less smelly, bacteria if there is sufficient oxygen 
> supply.  My solar powered fan on the fore hatch broke early this season and 
> the tank started smelling.  Replacing that vent fan seemed to cause enough 
> ventilation of the tank (under the v-berth) to solve the issue, so any minute 
> air circulation will help (the vent wasn't blocked).  Similarly, getting rid 
> of mud from a wasp nest in the vent hull outlet solved an issue a couple of 
> years back.  
> You are going to have some salt water / waste in the tank regardless of 
> ending the flush with fresh water.  Vinegar dissolves salt residue in the 
> hoses / tank - flushing a few gallons of white wine vinegar through the head 
> and then a nice upwind slog into steep chop should clear any build-up out at 
> the next pump out.
> - if the head is smelling, the fresh water flush will prevent decomposition 
> in the bowl, but make sure that the valves on the head pump / outlet aren't 
> letting anything to flow back from the outlet hose.  The joker valve is the 
> usual suspect, but if you're having to pump a lot to prime the pump to get 
> flush water flowing, or to empty the bowl you may want to check the other 
> pump valves too (advice from the list would be to replace the pump assembly 
> completely).
> 
> Hope this helps.
> 
> Tim
> Mojito
> C&C 35-3
> Branford, CT
> 
> 
>> On Tue, Sep 2, 2014 at 10:11 PM, Bev Parslow via CnC-List 
>> <cnc-list@cnc-list.com> wrote:
>> Four years ago I replaced all the hoses for the 29-2. The boat is used by 
>> the family with three young children. The head and holding tank is smelling. 
>> What is the best way to get rid of this. I could replace the hoses etc. Any 
>> advice?
>> 
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