Chlorine Levels

[Ian Wilde]

We've been told our tap water chlorine levels are high in this part of the country so just wondered what yours were?

We usually see 0.8 - 1.0 total chlorine.

Anyone beat that?

[KevinJGibbs]

Hi Ian,

Up here in God's country Newcastle Upon Tyne; Our Total Chlorine Levels for potable water are between 0.3 and 0.6 depending on the time of year!

Regards

Kevin

[Ian Wilde]

Cheers Kevin

[SteveF]

Hi Ian,

I've just been checking through our chlorine log. We get around 0.8 to 1.2 mg  total fairly consistently here at Preston.

How often do you replace GAC media on average?

Steve

[fraser gilmour]

ours levels are a bit lower down here, 0.2-0.3. The majority of our water is ground source, hard but low organic content, maybe that's why they can get away with the low levels?

[Ian Wilde]

Hi Steve, we're still only changing our GAC every 3-5 years i reckon.

Fraser, I was speaking to a Veolia engineer recently who said that those with low levels of water conductivity in their feed water like us (80-120uS) always have higher chlorine than those with the higher feed water conductivity.

Maybe because our water is soft and from reservoirs rather than bore holes it needs more disinfecting??

[Matt Waite]

So 14 years on the same carbon means it doesn't owe us anything?

[Chris Bates]

Our 1st stage GACs seem to be lasting 9-10 years too. Our incoming levels seldom go above 0.5.
Anyone else change their own carbon ?
Quite hazardous when you have a 150kg vessel !

[Ian Wilde]

I've only ever seen the aftermath of a carbon change - doesn't look the cleanest of jobs!?

[Garry]

Up to 0.8ppm total at a few of our sites