Chlorination of 63mm mdpe incoming cold mains

[Sharp Point]

Evening folks, I'm about to commence work on a 8 bed new build dwelling, the custard has just emailed me, asking if i know anything about how the incoming mains from road( about 130 metre run). Is it a requirement before or after Anglian water connect it in the road? I've carried out chlorination of schools in the past ( very boring job) but how is it carried out pre or post connection? Do you need a special qualification to sign off a clean out?

Thanks

 

[ShaunCorbs]

Evening folks, I'm about to commence work on a 8 bed new build dwelling, the custard has just emailed me, asking if i know anything about how the incoming mains from road( about 130 metre run). Is it a requirement before or after Anglian water connect it in the road? I've carried out chlorination of schools in the past ( very boring job) but how is it carried out pre or post connection? Do you need a special qualification to sign off a clean out?

Thanks

dont the water board do it after they tap in?

 

[lame plumber]

flush n go, its domestic isnt it? dont suppose your storing cold water in a new build

 

[AWheating]

i would just get a firm in once the main is in and ready to flush, they will supply the test certificate needed for the water board.

 

[snowhead]

https://www.thameswater.co.uk/tw/co...w-water-supply-regulations-guidance-notes.pdf

Page 4

 

[chris watkins]

I think you & your customer are in for a bit of a shock unless things have changed in the last few years. Once you go over 50mm on mains the pipes need to be swobbed out by pulling a chlorine soaked rag through the whole length of it. The trench will need to remain open until they come & inspect it, thats all before they make the connection.

 

[chris watkins]

Just had a look at snowheads link, oh yes forgot about the samples as well, as others have said get a firm in but be prepared for a hefty bill.

Can you self-cert the internal stuff ? otherwise you may want to check out the water supplies T&Cs, Thames wanted min 10 working days to come & inspect the completed install, then up to 21 days before they would do the connection bit of a long time to have a completed house without a water supply (hope they have a temporary supply?

 

[AWheating]

the best thing to do is get friendly with the local inspector and follow whatever advise/ orders he/she gives you.

 

[lame plumber]

live n learn, seems a bit ott but rules is rules

 

[chris watkins]

live n learn, seems a bit ott but rules is rules

Our guys who install the main network on sites have to chlorinate their tools as they work & are not allowed to work if they have some every day infections.
I was not aware of any of this until I started this new job. Every days a school day.