You may need a certain type of valve to match up with the configuration of the new shower you have. Since putting in a new valve is usually a plumbing project best left to the pros, you can save ...

First, here are the tools you need: One shower shutoff valve, one roll of Teflon pipe tape, and one pair of vice grip pliers. The total cost of this project was $5, the cost of the valve itself.

This changes the shower water mixture, allowing much more hot water into it. The simplest solution to this problem is to install a single-handle shower mixing valve with a pressure-balancing feature.