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Know your plumbing before it fails
Short plumbing guides from PHI Group, each with its sources and the date we last reviewed it.
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- Drains & SewerComing soon
- Water Lines & Lead1 guide
- Water HeatersComing soon
- FixturesComing soon
- GasComing soon
- Water Pressure1 guide
- Seasonal1 guide
- Costs & Rebates1 guide
- Local Utility Guides1 guide
Latest guides
Water Pressure
Pressure reducing valves: signs of high water pressure and when to replace oneWhat a PRV does, how to measure your pressure for a few dollars, and the symptoms that point to a failing valve.
Seasonal
Winter freeze-prep checklist for DC, Maryland and Virginia homesWhat to do before the first hard freeze, what to do during a cold snap, and what to do if a pipe freezes anyway.
Costs & Rebates
What drives the cost of a water heater replacement in DC, Maryland and VirginiaThe factors that move a quote up or down, how heat pump models change the picture, and where the federal credit and local rebates stand in 2026.
Local Utility Guides
WSSC "What's Your Pipe Type?": what Montgomery and Prince George's homeowners need to knowWho owns which part of your water line, what WSSC will replace, and what to do before replacing your side.
Water Lines & Lead
Does your DC home have a lead service line? How to check and what to doLook up your address, understand what DC Water's programs cover, and avoid the one mistake that can cost you the discount.
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