Effects of City Water Chlorine on Vulnerable Components

Tom Meyer

With the EPA changing the maximum allowed chlorine in city water to 0.4 mg/L, has anyone seen any negative effects on vulnerable hydronic system components, both open and closed systems (e.g. O-rings, gaskets, etc.)?

Has anyone seen a study addressing this?

Thanks for your help,

Tom Meyer
Senior Designer/Trainer
Precision Hydronics Corporation
www.precisionhydronics.com

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Caselli

Remind us...

what it was before.. ??

Larry Weingarten

switch

Hello: The switch by some utilities to chloranimine (sp?) is causing a little trouble. You may find good info at AWWA. They've helped me with this sort of research in the past.

hr

These folks might be of help

http://www.janalab.com/default2.htm

They seem to specalize in chlorine testing.

hot rod

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Weezbo

hmm......

i have a chemistry question does the munincipal side have lots of galvinized pipe and fittings? do they require the minimum use of galvinized pipe fittings on the owners side of the meter? ....

Weezbo

hmm......

i have a chemistry question does the munincipal side have lots of galvinized pipe and fittings? do they require the minimum use of galvinized pipe fittings on the owners side of the meter? .... i think that might have some bit of "wrench in the works" bearing on creating realatively quick degradation in plumbing systems.

hr

If I were a promoter of open systems

the chlorine issues would sure keep me awake at night!

Especially when some promote watering the lawn with public (chlorinated, and fluoridated (sp) water to get free radiant cooling

All to save the enviroment, of course!

Wasn't chlorine was the downfall of PB and the acetal fittings.

As I understand it antioxidant packages (chemicals) are added to pex tubing in the manufacturing process. One reason is to combat the effects of chlorine.

I think these packages get stressed, or used up at high levels of chlorine, especially at higher temperatures. I'm not sure what happens next. And the folks that know don't talk about it much

Seems whenever water quality issues arise in public water systems they start stepping up the chlorine levels. Same with public swimming pools

Chlorine is considered a necessary and safe product, for water treatment, when used properly and in moderation. Who's adding the chlorine to your public system?? How much did they inject this morning??

Maybe we should get a Jana lab person to give a seminar on this at ISH??

hot rod

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hr

If I were a promoter of open systems

the chlorine issues would sure keep me awake at night!

Especially when some promote watering the lawn with public (chlorinated, and fluoridated (sp) water to get free radiant cooling

All to save the enviroment, of course!

Wasn't chlorine was the downfall of PB and the acetal fittings.

As I understand it antioxidant packages (chemicals) are added to pex tubing in the manufacturing process. One reason is to combat the effects of chlorine.

I think these packages get stressed, or used up at high levels of chlorine, especially at higher temperatures. I'm not sure what happens next. And the folks that know don't talk about it much

Seems whenever water quality issues arise in public water systems they start stepping up the chlorine levels. Same with public swimming pools

Chlorine is considered a necessary and safe product, for water treatment, when used properly and in moderation. Who's adding the chlorine to your public system?? How much did they inject this morning??

Maybe we should get a Jana lab person to give a seminar on this at ISH??

hot rod

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hr

And if I were a double poster!

sorry

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hr

And if I were a double poster!

sorry

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Weezbo

hot rod

maybe they are trying to kill off the termites that are attacking the foam insulation:) maybe its a muni wide effort:) limited radiant cooling and termite abatement:) see, you didnt know i had a sence of humor:)