This product (and those like it) allow you to fix all the necessary pipework for any standard bar mixer shower valve (with150mm centres) at 1st fix stage.
After tiling, all you need to do is screw on the shower valve to the exposed threads.
There are a couple of variations but all have the same basic features of:
The main body of the bracket and the supply (hot & cold) pipes that feed it are positioned behind the finished wall surface as can be seen above.
In this instance the hot and cold pipework drops down to the bracket (but it can be rotated if the pipes come up from the floor) and is connected with 2 x standard pushfit connections.
PS Please see here for a compression version of the same valve.
These connections must be thoroughly checked for leaks before the pipework is entombed behind the shower wall.
This is done by putting the valve under pressure by turning the water on and capping the shower end of the bracket – this is done with the stop caps supplied (as in the picture above) or with the shower valve itself.
It is vital to ensure that the bracket is positioned square to the finished wall surface, level & set back from the tiled surface by an appropriate amount (see the box below for why).
In the picture above you can see that I have screwed a piece of wood to the wall behind the bracket in order to set it at the correct depth. I have also used plastic packers to make micro-adjustments to ensure the bracket is level & square to the finished wall surface.
Before boarding out the whole wall, I temporarily connect the shower valve to the bracket and use an offcut of plasterboard and a wall tile to check whether the bracket is set at the correct distance back from the wall (you will have to estimate 2-3mm for the depth of the tile adhesive here).
Back to the case study…..
The bathroom walls are then boarded and tanked prior to tiling.
Once the wall is tiled and grouted, the 2 x ¾” male threads of the bracket will protrude through the tiles as shown above. PS See here for how to cut the holes in the tiles for this.
The holes around the male threads are filled with silicon sealant to form a waterproof barrier to mitigate against the risks of water penetration behind the tiles.
These chrome collars attach in a slightly different manner than most other concealed shower brackets in that plastic nuts are first screwed onto the threads before the chrome collars are slid over them.
They are held in place by friction, and are therefor more likely to come loose than with collars that screw onto the thread directly, but they are designed in such a way that they obstruct the view of the exposed thread (which is normally left exposed with other concealed shower brackets).
This bracket also has a filter that you can see inside the male thread of the bracket.
The water supply is turned off, and the shower valve is screwed onto the exposed threads with a spanner, and a rubber washer forms a watertight seal. Be careful with the spanner on the chrome so as not to scratch it.
The 2 x male ¾” threads which the shower valve attaches onto are plastic on this model, so there is a small chance of the threads stripping if the metal threads of the shower valve nuts are overtightened – When attaching the shower valve just nip up the connections until the rubber washer grips.
Once the shower valve is attached to the bracket, screw the shower head onto the hose and then the other end of the hose onto the underside of the shower valve (one end of the hose is usually tapered to fit in the hose holder that attaches to the riser rail.)
Attach the (now connected) shower head to the riser rail and then mark the position on the wall where you want the riser rail to go, taking the height of the intended users into account.
Doing the work this way round will ensure that you don’t accidentally attach the riser rail too high on the wall for the shower hose to reach.
Drill and attach the riser rail, turn the water on and check for leaks at all junctions and nip up with a spanner if required.
Thanks for reading, leave me a comment if you have any questions.