Water Pressure / PRV

Related terms

• Water Service Line

  The pipe from the municipal main or well to the house. Old galvanized or lead service lines are often replaced during major remodels.

• Water Hammer / Arrestor

  The bang when fast-closing valves stop flow; an arrestor cushions it to protect pipes and joints.

• Water Softener

  Equipment that removes hardness minerals to protect pipes, fixtures, and water heaters. Often added during a plumbing remodel.

• Vent Stack

  The piping admitting air so drains flow without siphoning traps, terminating through the roof. Adding fixtures often means new venting.

• Whole-House Filtration

  Point-of-entry treatment (sediment/carbon) for all household water, plumbed at the service entrance.

• Variable-Speed Blower

  An ECM blower that ramps output to match demand for steadier temperatures, better humidity control, and lower electricity use than single…

• Whole-House Surge Protector

  A panel-mounted device clamping voltage spikes to protect all home electronics. Now required by code on service upgrades in many areas.

• UEF (Uniform Energy Factor)

  The standardized water-heater efficiency metric for comparing models; higher UEF means less energy per gallon delivered.