Pipe diameter to bath.

[cfd73]

Hi.
I would welcome any advise on running hot and cold supply to new bath in bathroom renovation.
I have a bungalow with cold tank in loft just above bath and hot water cylinder at ceiling height in garage.
I understand piping is best in 22mm, but would it be ok to T-off the supply pipes from loft to bath in 15mm, i.e. length of 2m.

Thanks.

 

[Dan Robinson]

Well, lets just say - it'll work, but not a lot.

Run it in 22mm and safe yourself a lot of hassle and moaning from the other half.