Descaling on Weddington water
Manufacturers write one descaling interval for the whole country, and it is set for hard water. Yours comes from Union County Water, and where that supply is soft the exchanger fouls considerably more slowly than that schedule assumes.
We will tell you honestly where you sit on that, because the alternative is descaling a unit annually that does not need it. Two caveats worth knowing before you skip it entirely: some manufacturers require documented annual servicing to keep the heat exchanger warranty valid, which is worth more than the service costs, and a property on a private well is a completely different conversation from one on the municipal supply.
- Descale on an interval that matches your actual water rather than the manual's default.
- Inlet filter clean, which is the most commonly skipped job and the cheapest.
- Flow rate and combustion check, so a declining unit is caught before it fails in January.

What Weddington itself changes
The housing in Weddington
Weddington is routinely described as new construction and it is not. The median build year is 2000, and 43.8% of the housing stock went up between 1980 and 1999, placing a very large share of the town squarely inside the polybutylene era. Only 176 of 4,583 homes were built in 2020 or later. Median household income is $190,766 and owner-occupancy runs 95.1%, so these are homeowners making considered decisions on large properties.
Where the heaters sit
Large homes, frequently with attic or bonus-room-adjacent installs, and often more than one water heater serving different parts of the house. Tankless and recirculation are both common here, and the pairing is worth checking.