What is dissolved in Rock Hill water, and what it does to glass
Rock Hill is on its own municipal water supply rather than Charlotte Water, so none of the hardness figures this site quotes for Charlotte apply at a South Carolina address and we check the local report before applying the soft-water reasoning to a dishwasher or an ice maker. Duke Energy serves the area for power. The one requirement that does not change at the state line is the federal one: EPA Section 608 certification governs sealed-system refrigeration work identically in both states, because it is a Clean Air Act requirement rather than a state one.
Establishing that matters here more than on any other appliance, because the single most useful thing we know about dishwashers in this region inverts the advice everybody has already read. Charlotte Water runs at 32 parts per million hardness, about 1.9 grains per gallon, with total dissolved solids at 59. That is soft. Every national troubleshooting article about cloudy glassware starts from limescale, and limescale is not what is happening.
Do one test before anything else. Soak a cloudy glass in white vinegar for a few minutes. If the cloudiness lifts, it is mineral film and it is a hard-water problem. If nothing changes, it is etching, which is not a deposit at all: it is material removed from the surface of the glass, and it is permanent.
The mechanism is documented by the appliance manufacturers themselves. Dishwasher detergent is built around polyphosphates and other softening agents because it is formulated assuming there is hardness to deal with. Put a full dose into water that is already soft and the softening component has nothing to act on, so the remaining alkalinity works on the next available surface. Glass is a silicate with metal ions in its surface, and it loses them.
The fix is to halve the detergent dose, and it is free. We will say that on the phone rather than booking a visit for it, because cloudy glassware regularly gets read as a dishwasher that has stopped cleaning and ends in a replaced appliance that does exactly the same thing.
Where the fault is genuinely mechanical in Rock Hill, the order is filter, drain hose loop and waste disposal before anyone quotes a drain pump, and an inlet valve quoted with a pressure reading, for the same reason it is on a washing machine.
The commercial position is the same in Rock Hill as it is at a Charlotte address, because the rate card on this site is not a Charlotte rate card. The diagnostic visit is $89 and it comes off the invoice in full when you approve the repair. Labour beyond that is $95 to $145 an hour. Nothing is added for the drive, and if the same fault returns after we have fixed it the return visit carries no fee at all.

What Rock Hill itself changes
The kitchens in Rock Hill
York County has a median year of construction of 1993, and Rock Hill is the town that sits closest to that median rather than at either end of it. What a 1993 kitchen means in practice is a specific replacement history: the original dishwasher and range have been through one cycle, the refrigerator has generally been through two, and the appliances currently in the room were bought at different points across the last fifteen years. So a Rock Hill kitchen is a mixed-age kitchen, and the useful thing to establish on the phone is the age of the individual appliance rather than the age of the house, because the two have almost nothing to do with each other here.
Getting an appliance in and out
Comfortable across most of the town. The 1990s and 2000s housing that makes up the bulk of Rock Hill has modern door widths and level approaches, and the older core near downtown carries the usual pre-war constraints without being unusually difficult. Being 25 miles from uptown Charlotte, this is a routine part of our service area rather than an edge of it, which is worth saying because plenty of Charlotte-based trades treat the state line as a boundary.
Permits and who is licensed
Swapping an appliance on an existing connection needs no permit here any more than it does over the state line, and we will say so rather than inventing a fee. What changes in South Carolina is who reviews the regulated parts. New or altered wiring for a hard-wired appliance and any work on a gas supply line are licensed trades reviewed locally rather than by a North Carolina office. The one requirement that does not change at the state line is the federal one: EPA Section 608 certification governs sealed-system refrigeration work in both states equally. In Rock Hill the City reviews work inside city limits and York County covers addresses outside them, and we confirm which applies before anything that touches a circuit or a gas connection.