ARE YOU GETTING BURNED IN THE SHOWER
                WHEN SOMEONE FLUSHES USER WATER SOMEWHERE IN YOUR HOME?

If the answer is yes, you need to change your tub and shower faucets to:

PRESSURE BALANCING FAUCETS

When you are taking a shower and someone in your home flushes a toilet, turns on a kitchen faucet, or draws water from any other fixture, you will never get burned in your shower again. In fact, when someone, in your home, uses any fixture, the water temperature in your shower will not change by no more than one degree.

Pressure Balancing faucets are manufactured by many companies. The most popular brand used is the Moen Posi-temp faucet. Parts for all Moen faucets are available at every popular do-it-yourself center and every hardware store I've even been in. The Moen Posi-temp faucets are also very simple to install and repair.

Click here for link for Posi-temp faucet installation