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Old 10-07-2007, 04:28 PM posted to rec.ponds.moderated
Derek Broughton Derek Broughton is offline
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First recorded activity by GardenBanter: Jul 2006
Posts: 353
Default Topping off the pond

wrote:

organics dechlor chlorinated water. has anyone just tried running
city water thru peat moss? Ingrid


The problem with chlorine and organics is that the combination produces
trihalomethanes (THM) - which are pretty bad for people. Does anybody know
what they do to fish? (Apparently somebody does - the EPA has a report
about the effects on Striped Bass at
http://oaspub.epa.gov/eims/eimsapi.d...ail?deid=40377 but I don't want
to spend $17.50 to get it only to find it doesn't mean anything to me - I
wasn't even sure about the term "Hepatocyte").

In drinking water systems, the aim is to filter practically all the organics
out of the water before treating with chlorine, to keep the THM levels
within EPA limits. If the THMs are a problem with fish, you really don't
want to use an organic filter to remove chlorine. [damn, I met an expert
in this sort of stuff two weeks ago - but did I know then I needed to get
his email address?]
--
derek
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