Tropical Fish Forum

Tropical Fish Keeping Help and Advice => General Fishkeeping advice => Topic started by: Sue on March 28, 2016, 11:57:52 AM

Title: Chlorine and chloramine in tapwater
Post by: Sue on March 28, 2016, 11:57:52 AM
Have you ever wondered whether your tap water contains chlorine or chloramine as the disinfectant? I have discovered that the 2014 DWI reports contain this information.

The reports are very long, well over 100 pages. But somewhere around the page 30 to 50 region is the heading Nitrite and Nitrate. At the bottom of this section the report lists which areas have 'chloramine residue'.

The country is divided into regions so I'll give the overall website and you'll need to click on your region so see your report.

http://www.dwi.gov.uk/about/annual-report/2014/index.html
Title: Re: Chlorine and chloramine in tapwater
Post by: fcmf on March 28, 2016, 01:05:57 PM
...and looks as though the (nearest) equivalents, for the other parts of the UK, are available here:

https://www.niwater.com/sitefiles/resources/pdf/reports/2014drinkingwaterqualityannualreport.pdf
https://www.niwater.com/water-quality-results/

http://www.scottishwater.co.uk/assets/about%20us/files/key%20publications/annualwaterqualityreport2014.pdf
http://www.scottishwater.co.uk/you-and-your-home/water-quality/waterqualitysearch



Title: Re: Chlorine and chloramine in tapwater
Post by: Skittler on March 28, 2016, 02:00:07 PM
I have always wondered if a water supplier would tell us, if it changed from chlorine to chloramine. Also, I imagine that in times of maintenance problems/breakdowns/drought etc., a water company would rapidly ensure a supply by taking water from another company.

I don't think it's worth taking the risk using a dechlorinator which does not remove chloramine.

                                         Skittler
Title: Re: Chlorine and chloramine in tapwater
Post by: Sue on March 28, 2016, 02:58:49 PM
The problem is that the dechlorinator I use takes 1 drop per US gall for chlorine but 3 drops for chloramine. I need to know which I have, chlorine or chloramine, so that I know how much dechlorinator to use.

It is just about the only brand on the market that does not contain something to 'stimulate the slime coat' which is why I use this dechlorinator.