Old as Dirt!
Join Date: Nov 2008
Location: Tampa Bay Area
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Re: Adding filter to head intake to reduce odor
the rotten egg smell in the head after the yachts been sitting for awhile is due to the decay of micro-organisms in the raw water line as the oxygen is depleted. Sulfur dioxide dissolved in the water exgasses as the water is agitated by being pumped into the bowl--which is what you smell. Depending upon where you are discharging the waste. one "treatment" involves putting a small chip of a chlorine pool tablet in the filter basket on you raw water intake strainer. Note, however, that the filter screen will suffer if it is made of metal and a mesh screen may have to be substituted. The first discharge after you return to the yacht should go overboard (without waste) with quite a few pumps to get the concentrated chlorine from the dissolution of the tablet chip through and out of the system. From there on, the little bit that will remain in the system should not be unduly harmful provided you shift your head to "dry" and put a few cups full of fresh water into the head and pump that through to protect the rubber valves somewhat. An alternate treatment is to take a small piece of copper grounding foil, and make a circular roll of it that will fit into the strainer basket. The dissolving copper with prevent the proliferation of micro-organisms as well.
"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
Last edited by svHyLyte; 04-28-2013 at 12:24 PM.
Reason: Correct typo