Water Pressure Regulators

Boomerweps wrote:


Yes, they slow the flow which limits the pressure going through them. However once you stop the flow of water, the pressure before and after that type (under $10) unit will equalize through the small openings that restrict the flow. So whatever the source pressure is, that will become the static pressure in the RV system. Fluid dynamics.
The more expensive RV water pressure regulators, which can be had for as low as $35-40, actually shut off the flow and pressure increase once the set pressure is reached. When the pressure on the use side of the system goes below the set point, the regulator allows flow to regain that set pressure.
These type water pressure regulators are often used in homes that have high pressure water supplies. I have seen semi-rigid plastic faucet supply lines blow out that used compression washers supposed to dig into the pipes on a home system, home in the valley, town tank on the hill a couple hundred feet higher.