White flakes in the hot water are usually mineral scale from the water heater. The flakes are harmless, and the fix is a tank flush.
The scale
Hard water deposits calcium scale in the heater, and flakes break loose. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, hard water makes the flakes common.
The hot only
The flakes come from the tank, so only the hot side shows them. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, the cold water staying clear is the clue.
The sediment
The scale collects at the tank's bottom and flakes off with the flow. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, the heater's age and hardness drive it.
The aerator
The flakes can collect in the aerator, slowing the flow. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, cleaning the aerator clears the flakes.
The flush
Flushing the tank removes the scale and the flakes. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, the yearly flush is the fix.
The softener
Treating the hard water reduces the scale in the first place. hard water is common across the region, and older neighborhoods still have galvanized supply lines In Charleston, a softener or conditioner helps.
The call
Flush the flakes out. Call 888-217-3585 and Charleston, SC Plumbing Helpers will match you with a Charleston pro for the service.
Plumbing in Charleston: what to know
In Charleston, hard water is common across the region, and older neighborhoods still have galvanized supply lines. Pros in our network know the local quirks and bring the right parts on the first visit.
Across Charleston County — from Mount Pleasant, James Island and Hanahan to ZIP codes like 29405, 29409, 29403 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.
Need a hand in Charleston?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Charleston, SC Plumbing Helpers will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Charleston.