bathroom prob any help please

[hemingway]

just taken old bath out and looking to replace.its a double ended bath so taps in the mid.do i batton both walls the bath is going against for the bath to rest on for add strength.plus whats the best,tile then push the bath up or put the bath up against the wall then tile to the bath and third is the taps where single before and now its a mixer,22mm hot 15mm cold.will this pose a prob when running both together.cold is mains fed an hot is from the combi boiler.bescause the mains will be fed at a higher pressure will their be probs.thanks

 

[Alan.P]

Point one, I would batten as well, belts and braces

Point two, fit bath Silicon between bath and wall, then tile to bath, leaving 2mm for Silicon joint.

Point three, no idea, sorry.

 

[AliGage]

No issue with your water pressure either if your on a combi. Depending where you are your mains pressure may vary. Typically for domestic dwellings its 1.5 bar. Set your combi to the same using the filling loop.

 

[AliGage]

Depending on your tap you might want to consider non return values on the pipe work. But if it's WRAS Approved you shouldn't need them.

 

[jindru]

on point three i have used the 20 mm and 15mm supply before without problems.the only problem is if you have enough water pressure to ensure hot and cold are strong enough to operate together.your hot water is via a combi which is mains pressure via a flow restrictor subject to the flow rate of the boiler.im not a heating engineer but have fitted this combination many times without problems.hope this makes sense,cheers.

 

[destroyer2813]

No issue with your water pressure either if your on a combi. Depending where you are your mains pressure may vary. Typically for domestic dwellings its 1.5 bar. Set your combi to the same using the filling loop.

Setting the gauge to 1.5 will make no difference what so ever the gauge is related to the heating not the hot water performance

 

[AliGage]

On a combination? Pretty sure it relates to both.

 

[destroyer2813]

Trust me pal it dont im a cough cough plumber

 

[AliGage]

I've just looked it up and sorry i've been mis-informed. I was lead to belive it gauged the water pressure through the system. Curious though as to why if the pressure is low it reflects in the hot water pressure?

 

[hemingway]

Cheers for all the help guys.just 1 more question.do I have to prime my walls an plasterboard before tiling or can I put them straight on.i have used bonding to level some off the walls up an fill the hole's

 

[Perry]

You can't tile on bonding what adhesive and tiles are you using and what are your surfaces ?

 

[hemingway]

Why can't I tile over it.its thistle bonding coat undercoat for plastering, thought they wouldn't b a problem.l have filled holes around window on two walls.the walls are old style lime plaster.so came off abit when ripping old tiles off.other two walls I ripped out and replaced with moistersheild plasterboard from jewsons.tiles r ceramic 250 x 400.thought I could mybe prime an tile.now thats put job to a stop.

 

[hemingway]

Thats lime plaster skimmed owhen built, so did half the wall with the bonding.

 

[hemingway]

Its only a thin coat of bonding,I have got bal sbr primer an was going to use that before tiling.the bonding has totally dryed out now.had a couple off week to dry.what if I used a cement base adesive to tile on to.need some help now.

 

[hemingway]

Bonding is about 1 to 2mm thick bar the holes that been filled.