Another daft question, (thanks for all the screwfix shop replies - works a treat!), but the incoming mains to our house is a black semi-flexible pipe of about an inch in external diameter. This has what looks like an odd coupling that looks like some sort of compression joint to 15mm pipe where I fitted a stop c*ck some years back... (works fine).
Our water pressure is high (8 bar), but flow rate low (under 10 litres a minute) I think due to some external restriction in the pipe work - which I'm not prepared to dig up at this point in time.
I'd like to remove the join to the 15mm pipe, fit a coupler to 22mm pipe, a quarter turn full-bore "stop c*ck" to make it fool-proof for wifey, then fit a pressure reducer to 3.5 bar, and then run 22mm pipe from there - hoping to get a better flow rate at a pressure that'll reduce the possibility of burst pipes (not a plesant sight round here when it happens - as it did to our neighbours recently)
Googling finds various names for plastic pipe - mostly seem to refer to blue alcathene or MDPE pipe, but I'm not sure that's what I have. It's black!
So can some kind soul tell me the name/official size of the pipe and suggest a coupling device?
Thanks,
Gordon