What does Pressure Balance and Thermostatic mean?
Both are methods used to maintain safe and comfortable shower faucet temperatures when other water-consuming appliances in the home are used (dishwasher, garden hose, toilet or washing machine). These appliances can intermittently change the balance of water pressures being supplied to a shower valve. Older shower valves not having these features will mirror those pressure changes by changing the temperature of the outgoing shower, leading to discomfort and even injury. Pressure balance valves compensate for the pressure changes caused by these appliances. The result is a fairly consistent shower temperature and protection against accidental scalding. Thermostatic valves also compensate for these pressure changes, and offer protection against accidental scalding. In addition, they compensate for any temperature changes of the incoming hot and cold supplies. This creates a very consistent water temperature regardless of conditions. The additional advantage of thermostatic valves is that
