New water main-stop cock and drain valve?

[dhutch]

stevensdrs said:

Use this instead, goes straight onto the 25mm pipe, don't forget to fit an insert. https://www.screwfix.com/p/poly-stop-cock-25mm-x-2...

Looks like the same thing as the first link in the OPs post.

[dhutch]

RockyBalboa said:

Just deciding if I should use 15mm or 22mm plastic for all the runs?

The flat is all electric so will have an instant water heater under the sink and 2 electric showers.

Depends on the layout, how powerful the elec showers are, how many people will using the flat at any one time, as to if you will see any difference.

However if it were me I would try and using 22mm till at least you have split the flow a bit, usually this would be the hot water tank, but if your just having instant heating, it would be trying to get at least the bit the will see both showers and or kitchen sink in 22mm, but then run 90% of it in 15mm. Certainly you don't need 22mm to each outlet.

Presumably you are not having a bath then? or filling it with the shower?


Daniel

[RockyBalboa]

Sorted it.

Used the brass poly stopcock to connect directly to the 25mm MDPE. Video call with the supplier and it has been passed and can back-fill.


Have done all runs in 22mm JG Speedfit just for belt and braces as it's a shared supply.

[MJNewton]

RockyBalboa said:

Video call with the supplier and it has been passed and can back-fill.

Nice to hear such a sensible and pragmatic approach being taken!

[RockyBalboa]

Just FYI to all..

Severn Trent came down today to connect the pipe up to their end. They installed a 'flow meter' which is basically a water meter and say this is now standard practice. I obviously protested and the contractors assured me it won't be used for billing. Rang the team who deals with the installs and they said the same and said it's for the future and then can be activated 'if you want to be billed off it'.

I'm going to split the pipe internally to two flats so a water meter wouldn't work anyway but just a heads up for everyone.

[dhutch]

Sounds good.

Unless your usage is off the scale, even if you were metered the cost is likely to on par, you might even save a reasonable amount.

United utilities didn't fit a meter when they connected up our new connection as far as I know, certainly not in the house, but I must say I havent looked down at the in street box.


Daniel