Question 1

What is PVC pipe used for in plumbing?

Accepted Answer

PVC (Polyvinyl Chloride) pipe is used for drain, waste, and vent (DWV) systems. It is lightweight, corrosion-resistant, and inexpensive. PVC is not rated for hot water supply lines — CPVC or PEX is used for those applications.

Question 2

What is the best type of water heater for a Northern Virginia home?

Accepted Answer

For most Northern Virginia homes with natural gas, a tankless water heater offers the best combination of energy efficiency and unlimited hot water. For homes with electric service, a hybrid heat pump water heater uses 60-70% less electricity than a standard electric tank and qualifies for federal tax credits. Tank water heaters remain the most affordable upfront option for budget-conscious homeowners.

Question 3

Why should I hire a licensed, bonded, and insured plumber in Virginia?

Accepted Answer

A licensed plumber has passed the Virginia DPOR examination and is authorized to pull permits and perform code-compliant work. Bonding protects you financially if work is incomplete or substandard. General liability insurance covers property damage. Workers' compensation insurance eliminates your liability if a worker is injured on your property. Unpermitted work by unlicensed contractors can void your homeowner's insurance and create problems when you sell your home.

Question 4

Does Northern Virginia have hard water?

Accepted Answer

Yes. Northern Virginia has moderately hard to very hard water, typically 150–300 PPM. Hard water causes scale buildup in water heaters, pipes, and fixtures, reducing efficiency and shortening equipment life. A whole-home water softener or salt-free water conditioner can protect your plumbing system.

Plumbing Facts, Terms & Homeowner Guides

Plumbing Terms Every Homeowner Should Know

PVC (Polyvinyl Chloride) Pipe

CPVC (Chlorinated Polyvinyl Chloride) Pipe

PEX (Cross-Linked Polyethylene) Pipe

Copper Pipe

Cast Iron Pipe

DWV (Drain, Waste, and Vent) System

P-Trap

Backflow Prevention

Water Hammer

PRV (Pressure Reducing Valve)

Sump Pump

Grease Trap

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