Usually the shower valve/diverter assembly and the handle/trim for that assembly need to be the same manufacturer, but the shower head and wand do not have to be the same brand. There are also configurations where the diverter is a separate item from the shower valve, but these are usually for more complicated layouts (wall jets, etc.). Bruce

Thanks for the responses! Joseph: They make standpipe covers and they sell them here. It can't be against code. And there is a u-trap preventing gasses from coming up through it already. Capping it won't hurt anything at all, except if there is an overflow it might then blow out somewhere else in pipes. I just don't know anything about water pressure in a drain line and know what to expect. If it were capped completely, would it flow back up the pipe, would it go through the 1" tube (ie: is that enough), etc. Greg: I wish. Talking about a problem that only occasionally happens and I have more pressing issues than spending thousands to replace the line. Additionally, I don't like living with the idea that my neighbors can flush something down their toilets and stop up the mainline, and then it's going to overflow into my basement the next time I use my plumbing. I'd like some peace-of-mind that I'm not the only one on the block with an open sewage overflow into my basement!

Thanks. When the water came back on, we now have a problem with our upstairs bathtub faucet. It will not turn off. It is not running full blast, but it is running a steady stream of water. It is now 15 days later, and we still have not had a plumber return our calls. We have called 27 listed as local plumbers within an hour from us. Many have gone to Texas to make more money. So, my water bill is going to be huge next month. What do we do? There is an acrylic shower surround/tub that we didn't plan on replacing. The faucet is a Delta, and it could be anywhere from 15 to 25 years old. Probably the same age as the valve. Lowes people said it can be rebuilt, but we always hire plumbers. Since we can't find a plumber, what do we do? Thanks.

Personal opinion: a fine DIY solution. It likely will not give you any trouble for a long time, and when it does, it will be fairly easy to service. Not acceptable for a professional. This is like having a builder install a faulty outlet and throwing you a few extension cords to solve the problem. A plumber screwed up somewhere in the walls, maybe teed off a cold instead of a hot by mistake, and your builder doesn't want to fix it the right way because it will be a huge pain to trace the mistake back to the source. Not your problem.