Join Date: Nov 2008
Location: Deale, MD
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Re: Safe Drinking Water Without Chlorine--the Netherlands
The vent issue is well taken; strange that though the US plumbing code requires at least a bug screen (16 mesh), few boats even have this. Easy fix, as discussed on this forum.
Regrowth, for example through the vent, will occur, but the odds of the dust being pathenogenic are remote. Certainly any bacteria can be important for food processing and medical applications, but it won't be fecal contacted. The risk would be the of growth of the few surviving pathenogens, but most evidence suggests that they don't really like to regrow outside of a host. Certain imuno-compromised individuals are at risk, but not most folks.
How much of secondary disinfection (the chlorine you taste) is for control of pathenogen re-growth (little, I suspect) vs. in leakage of sewage (not an issue on boats; the Netherlands focus on good maintaince), bio-corrosion (not an issue on boats; the Netherlands focuses on bio-stable water and flow) and taste/quality issues (any carbon block POU filter would solve that)? Is secondary disinfection really needed on a boat, if the feed water was microbiologically safe (which it should/will be in the US)?
I posted the topic because the Netherlands' practice is an interesting and well-executed counterpoint to common practice.
(when asked how he reached the starting holds on a difficult rock climbing problem that clearly favored taller climbers - he was perhaps 5'5")
"Well, I just climb up to them."
by Joe Brown, English rock climber
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Last edited by pdqaltair; 07-11-2014 at 09:32 PM.