Fitting basin taps to bath?

[Xenophya]

We are currently fitting a new suite and have bought some new mixer taps off of ebay. The ebay listing calls the tap a "basin/bath" mixer tap. The taps have two 15mm braided hoses with connectors on which is fine for the basin but the bath has a 22mm pipe on the hot water feed and a 15mm on the cold. I know you can get connectores which will reduce the pipe diameter but I'm not sure what effect this will have. It must be 22mm for a reason?

I called the ebay shop and asked if there would be any problems and the chap said it would be fine, it would just take longer for the bath to fill, but after reading a few posts on here I'm now not sure it will be.

Any advice would be greatly appreciated.

Mark

 

[megawatt]

It is 22mm to provide a higher flow rate and, as the eBay chap said, to reduce it to 15mm will reduce the flow ... Either you're happy with this or you're not really ... If you're not you need to change the tap.

Is your hot water fed from a tank or a combi?

 

[Xenophya]

Hello, thanks for the speedy reply.

The hot water feed is from a combi fitted about 18 months ago. Before that there was also a combi but I assume the 22mm pipe diamter is left over from

We haven't yet cut the hole/s into the bath for the tap/s. The one we got off of ebay is a mono block mixer type design so would only have one hole. I don't really know how much of a reduction in preasure to expect and don't want to cut a single hole into the bath, find out that the hot water only comes out at a dribble, and then be forced to find a suitible bath mixer. If on the other hand the water preseure reduction isn't too bad then I would like to keep the tap.

Mark

 

[John M]

My Bro plumbed his bath with 15mm on both ..... The cold was fine ....... But you could read a encyclopedia while waiting for the hot to fill ........ I guess its all got to with pressure in the end ..... But thats what happed to him anyways

 

[MarkBarl]

15mm Should be fine as both are fed from mains pressure rather than a gravity fed system.

 

[Xenophya]

Thanks for the replies.

So, fundamentally what's the difference between a basin tap and a bath tap? Do they both come with 15mm fixings as standard? Or should I expect the bath taps I order to come with 22mm fixings? Or is there another difference, perhaps internally that makes one a basin tap and one a bath tap?

I'm not sure if this is relevant but our kitchen tap is a monobloc mixer tap and the pressure from this is excellent.

 

[John M]

lets try this from a different angle ....... Is your hot water supplied under mains pressure ?

If its gravity fed, whats the approximate distance from the bathroom floor to the base of feeding tank ?

(This is where bro came unstuck)

 

[Xenophya]

Mains pressure

 

[John M]

Mains pressure

It don't matter what ya fit then