Mains Cold Feed to Bath

[spedge]

Hi, Can I use an existing 15mm cold water mains feed to supply the bath or is a gravity feed prefered, are there any disadvantages and in my gravity fed system can I use 15mm hot supply or does it have to be 22mm

[Bahco]

15 mm cold feed off the mains is fine for the bath as long as you are not planning on putting a mixer tap/ shower on it.

Gravity hot piping is better in 22 as it is low pressure and will take a lot longer to fill in 15 mm

__________________
85 weeks without smoking!

[spedge]

Many thanks, never even considered the possibility of cross feed in a mixer.

Talking of mixers, why do some taps have such high operating pressure requirements i.e 1bar, 2 bar etc.

[Nige F]

spedge wrote:

Many thanks, never even considered the possibility of cross feed in a mixer. Talking of mixers, why do some taps have such high operating pressure requirements i.e 1bar, 2 bar etc.

Because they are from the EU where mains pressure water H+C has been the norm for years