Below is a fitting guide for the valve and rail of a thermostatic mixer shower:?Tools:Adjustable spanner, pencil, cable detector, electric drill and masonry bits, spirit level.This rail needs be set high enough so that it can be used by the tallest user in the home comfortably, but not that low that the showerhead dangles less than 25mm from the spillover level of the shower tray or bath, or nearby basin. This will cause a risk of something called back-siphonage of used water into your domestic supply. Brixton Plumbers know about water supplies. Seal the hole around each inlet pipe with sanitary silicon sealant. Flush out the pipework by briefly turning on the hot and cold water supply. Then, before attaching the pipework trims, fit a coupler on each pipe and fit the thermostatic mixer valve using an adjustable spanner. Turn on the hot and cold water to check for leaks. If ok, turn off the water again and remove the mixer, fit the chrome pipework trims and refit the mixer valve. Fit the lever and holder to the slide rail. Hold the brackets on the ends of the rail and mark the position of the fixing hole for the lowest one. Make sure that there are no hidden pipes cables with a detector, then drill where you have marked the position of the lower bracket. Insert a wall plug and squeeze onto it a spot of sanitary silicon sealant. Remove the slider rail from the brackets and fix the bottom bracket to the bottom hole using the screw supplied. A Brixton Plumber can fit rails. To find the position of the top fixing hole place the rail back onto the bottom bracket. Put the other mounting bracket onto the top of the rail. Use a spirit level to check it is vertical and mark the top fixing hole on the wall. Remove the rail and drill and plug the wall as before. Screw the top bracket in with the rail in place. Finally, fit the bracket covers onto the top and bottom brackets.
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