Sometimes when you take the bath, all of sudden very cold or very hot water start coming out of the shower and could seriously harm you. Adults and children need to be very alert to prevent this problem. Anti-scald valve or thermostatic temperature control valve in the shower helps in eliminating this problem.

Anti-scald pressure-balanced and temperature control valves are an important part of bathroom plumbing because they eliminate the scalding and cold water shocks that can occur in a shower when a toilet is flushed or a faucet is turned on. If you are looking for a new shower or just a shower head, get an anti-scald valve.

With the help of these valves, a safe temperature level can be maintained irrespective of temperature level of water. One other good alternative to solve this problem is to set the thermostat at 120 degrees. Once you set your thermostat at this particular temperature you can check water temperature by putting a thermometer inside a cup of water.

The problem that causes temperature fluctuations is basic. When a toilet is flushed, cold water flows into the tank to refill it, which causes the water pressure in the cold-water pipes to dip. If this happens when you are showering then less cold water may reach the shower valve and changes the shower’s comfortable hot/cold mix to hot only.

On contrary, if a person in house opens up any hot water faucet, it reduces the water temperature of water coming out of the shower.

To solve this problem of water pressure, you can install pressure balancing valves. This valve helps in changing the inlet water pressure and provides you constant level of water pressure. Due to this a particular level of water temperature is maintained and you get comfortable level of water temperature to bath. However, one of the drawbacks of using these valves is the flow of water coming out of the shower.

For few people a good water flow and high volume of water is very essential. Such people should go with thermostatic valves as these valves have around 3/4 inch water inlet and the flow of water through these valves is very high. It also helps in maintaining the required water temperature.

A plumber can usually replace a single-handle, conventional valve with a pressure-balanced valve but replacement of a dual-handle setup is little cumbersome.