Step-by-step guide on how to master flushing your hot water heater.
If your water heater is leaking or flooding, the very first thing you must do is shut off the cold-water supply valve. Most homeowners in Raleigh, Durham, Cary, Wake Forest, Greenville, and Spartanburg discover too late that their valve is seized. These 3 steps will save you thousands in water damage.
1. Know Your Water Heater Age & Location (Takes 60 Seconds)
Popular brands we service every day in the Triangle & Upstate SC: A.O. Smith, State, Bradford White, Rheem, Rinnai, Whirlpool, Kenmore, GE, American, Richmond, Ruud – and many more.
- Average lifespan: 9–12 years (tankless units last longer)
- Find the silver/white manufacturer label on the side of the tank
- Locate the serial number – first 4–6 digits almost always contain the manufacture date Example: 09234FR563 = September of 2023
- Not sure how to read it? Google “[Brand] water heater serial number date code” or just call/text us – we’ll tell you the exact age in 30 seconds 📞 (919) 341-1911 (NC) | (864) 979-4050 (SC)
2. Add a $15 Water Leak Alarm TODAY (Best $15 You’ll Ever Spend)
Place a loud water alarm in the drain pan – 100+ dB siren gives you instant warning.
Top-rated alarms our customers love:
30-second install videos:
- Watchdog: https://www.youtube.com/watch?v=_zT1IOs7Wxs
- SimpliSafe: https://www.youtube.com/watch?v=A0JIR-mQwS4
3. Test Your Water Heater Shut-Off Valve Every 6 Months
| Gate Valve (round wheel) | Ball Valve (lever) – what we install every time |
|---|---|
| Fails after ~10 years | Lasts 50+ years |
| Gate valve | Ball valve |
(Full safe testing steps above)
Set These Three Phone Reminders TODAY
- March 1 & September 1: “Test water heater shut-off valve”
- 9 years from manufacture date: “Call Modern Plumbing & Backflow for new water heater quote”
- Right now → Add us to your contacts so we’re only one tap away:
Modern Plumbing & Backflow – Raleigh / Triangle 📞 (919) 341-1911
Modern Plumbing & Backflow – Greenville / Spartanburg / Upstate SC 📞 (864) 979-4050
Serving Raleigh, Durham, Cary, Wake Forest, Chapel Hill, Greenville SC, Spartanburg SC, and all surrounding communities.
When you need a reliable ball-valve upgrade, water heater replacement, or emergency service, we’re the local, family-owned team that answers the phone 24/7.
Call or text anytime – (919) 341-1911 (NC) | (864) 979-4050 (SC)
Stay dry, North Carolina & South Carolina.
