Chlorine Levels

classic Classic list List threaded Threaded
10 messages Options
Reply | Threaded
Open this post in threaded view
|

Chlorine Levels

Ian Wilde
Administrator
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?
Ian Wilde
Renal Tech
Manchester University NHS Foundation Trust
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

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
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

Ian Wilde
Administrator
Cheers Kevin
Ian Wilde
Renal Tech
Manchester University NHS Foundation Trust
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

SteveF
In reply to this post by Ian Wilde
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
Steve
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

fraser gilmour
In reply to this post by Ian Wilde
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?
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

Ian Wilde
Administrator
In reply to this post by SteveF
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??
Ian Wilde
Renal Tech
Manchester University NHS Foundation Trust
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

Matt Waite
So 14 years on the same carbon means it doesn't owe us anything?
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

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 !
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

Ian Wilde
Administrator
I've only ever seen the aftermath of a carbon change - doesn't look the cleanest of jobs!?
Ian Wilde
Renal Tech
Manchester University NHS Foundation Trust
Reply | Threaded
Open this post in threaded view
|

Re: Chlorine Levels

Garry
In reply to this post by Ian Wilde
Up to 0.8ppm total at a few of our sites