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How to Fit Bar Mixer Shower Pipework

This post describes how to 1st fix pipework for a bar mixer shower valve installation.

Introduction

When installing a bar mixer shower valve such as the one shown, it is initially essential to run hot and cold pipework to the valve.

Setting Up a Bar Mixer Shower Valve

Please see Choosing a shower for your restroom for more information on shower types and their viability for your bathroom.

This is done by recessing the pipes within the wall prior to tiling.

In this case research study I will be recessing the pipework into a restroom wall that has actually already been dot n dabbed with moisture resistant plasterboard.

Doing the plaster-boarding prior to the 1st repair pipework makes it much easier to get completely flat & level walls as you don't have the fiddly job of attempting to fit the boards around/ over the pipework (to name a few things.).

Walls likewise need to be square in the corners to allow a great seal (along the edge of the bath in this circumstances.).

Please see Preparing walls for tiling-- reboarding for more information associating with this subject.

Method.

Utilizing Bath to Mark Overflow/Waste and Center of Bath Taps.

The bath is briefly placed in position, and the centre line (that goes through the overflow/ waste and the centre of the bath taps) is marked.

This will help us line the shower valve up with the taps for a more aesthetically pleasing surface.

The horizontal level of the bar mixer shower valve is then significant, which is typically around 130cm from the floor. If you are intending to fit a bar mixer shower with a repaired riser and shower head, you will need to make sure that this height enables you to fit the shower in without it hitting the ceiling.

Correct Shower HeightIncorrect Shower Height.

Next the pipe centres are marked with vertical lines at 150mm centres i.e. 75mm away from the centre line in both directions. This is where the pipework will range from the valve, down the wall and connect to the pipework under the bath.

The majority of bar mixer shower valves accept pipework at 150mm centres as this is considered standard-- if your particular model has a various pipeline centre value, then you require to show this at the marking out phase.

An area to be chased out is then marked (into which the pipes can be recessed beneith the surface area of the plasterboard.).

The approximate height of the bath rim is likewise marked at this stage.

Correct Shower Height.

The locations to be chased out are then chased out utilizing a specific saw, making sure that they extend below the level of the bath rim, which is marked in pencil on the plasterboard.

Here we can see the pipework under the bath that will be extended approximately feed the shower valve.

The hot feed will be run up the left hand channel, and the cold feed will be added the right hand channel.

This is due to the fact that the hot feed will go into the valve on the left (as we look at it) and the cold feed on the right.

This is a market standard.

Due to the fact that of this, the pipework under the bath is in line with this configuration.

You can see that the bath drain & trap has actually also been fitted at this time. When the bath remained in position, a cross was marked on the floor through the waste hole in the bottom of the bath to mark the essential area of the bath trap.

Copper Pipework Is Soldered And Then Placed Into The Channels.

2 pieces of 15mm copper pipework are then soldered together with a 90º elbow for each feed, which are then positioned into the channels as revealed.

The horizontal pieces of copper (at the top) will eventually be cut down to go into the back of the bar mixer valve.

The pipes are held level and square to the wall at 150mm centres (centred on the preliminary centre line) by a home-made jig which is screwed to the wall momentarily. This is very important as attaching the shower valve relies on this phase of the work https://plumberglasgow247.co.uk being done accurately:.

Pipes Are Held Level And Square To The Wall.

It is essential the the pipes are recessed far enough into the wall so that the 90º elbow fitting does not protrude out beyond the ended up tiled surface.

This will ensure that it does not interfere with the fitting of the bar mixer shower valve.

Incorrect Shower PipeworkCorrect Shower Pipework.

The pipes are then protected in location by using either drywall adhesive, rapidset tile adhesive or a sand-cement mix.

If using a mix containing cement, please ensure the pipes are wrapped in duct tape to prevent the cement from attacking the copper which could lead to pinholes and leaks establishing over time.

The mix is pushed in and around the pipes and is used to support the cut edges of the plasterboard.

Mix Is Levelled Off Flush With Surface of Plasterboard.

This is then levelled off flush with the surface area of the plasterboard, ensuring access to the bottom of the pipes is exposed so that they can be connected up later.

Batons are screwed and glued to both walls surrounding the bath, and these will help to take the weight of the bath when it has plenty of water and/or occupants. This will prevent it from dropping, which can result in broken silicon seals and water ingress issues.

Temporarily Position The Bath to Allow For The Pipework To Be Connected.

The bath is then momentarily placed in position to enable the pipework to be linked.

The existing cold and hot pipework is linked to the suitable pipework in the wall that will feed the shower valve.

Provisions are likewise made at this stage to link the bath taps-- by means of flexible push fit tap ports in this circumstances.

As with the shower valve, hot is on the left and cold on the right (as you look at the tap) so this makes pipework simpler.

Jig Is Removed And Voids Are Filled With Adhesive.

As soon as the adhesive holding the pipes has gone off and the pipes are safely kept in the correct position, the jig can be gotten rid of and any staying voids filled out with more adhesive.

As the pipework is now linked to the hot and cold provided, stop ends can be seen in place at the ends of the pipes.

The bath is now be set up, and you can see the main silicon seal around the edge of the bath in this image.

Tanking And Tiling The Walls.

The walls are then tanked and tiled.

Installing a Bar Mixer Shower Valve.