What is a pressure balancing valve and why should I install one on my shower systems?
Pressure-balancing valves prevent sudden temperature swings! It’s happened to everyone who showers: Elsewhere in the house a toilet is flushed, a faucet is opened, or the washing machine kicks on, and the once-temperate water coming from the showerhead is suddenly cold enough to make you jump or so hot you want to scream. A simple device called a pressure-balancing shower valve can help. By adjusting to pressure changes in water coming through the hot and cold supply lines, a piston in the valve automatically opens or closes small inlet ports to maintain a balance in pressure, which in turn keeps the water flowing at an ambient temperature. It reacts instantaneously. Pressure-balancing valves are now required in new residential construction in most states, depending on local plumbing codes. In addition to piston valves like the one shown above, some pressure valves use a wheellike diaphragm to trigger pistons that cover the hot-or cold-water ports. Both are priced at around $70, not in
Pressure-balancing valves prevent sudden temperature swings! It’s happened to everyone who showers: Elsewhere in the house a toilet is flushed, a faucet is opened, or the washing machine kicks on, and the once-temperate water coming from the showerhead is suddenly cold enough to make you jump or so hot you want to scream. A simple device called a pressure-balancing shower valve can help.
