Here the new Price Pfister valve stems have been added to the newly retiled wall (with new holes). I do not tighten them yet to give some play, since the tub downspout has not yet been added to the lower hole. Background: This is image 16 of a repair project to fix a shower/tub diverter valve made by Barber Wilsons & Co Ltd. The handle which was supposed to divert water to the shower but it did not work; a plastic piece inside was broken. Unfortunately, since this valve could not be fixed from the front, it required a major operation to open up the back and replace pipes. I ended up replacing the defective valve with a Price Pfister valve-set so in future repairs will be easy.