Fort Worth Water reports 108 to 150 parts per million of hardness. Here is what that means for glass, chrome, stone and appliances, which nearby cities get the same supply, and how to keep the film under control.
If your shower door turns cloudy a week after it was cleaned, or the base of the kitchen faucet grows a white crust, the cause is in the tap. Fort Worth's lake water carries a steady load of dissolved calcium and magnesium, and it stays behind every time a drop dries.
This guide reads the utility's own numbers, sorts out which parts of the area get which water, and lays out a cleaning routine that removes mineral film without scratching glass or etching stone.
Fort Worth Water's quality table lists total hardness of 108 to 150 parts per million as calcium carbonate, which the utility gives as 6 to 9 grains per gallon. By common classifications that range straddles the line between moderately hard and hard water.
The utility treats hardness as a secondary, aesthetic constituent, not a health concern. It also notes that its water is usually hard enough to leave a protective mineral coating inside metal pipes and fixtures. That coating is useful inside the plumbing. On the outside of your faucet, shower head and glass, the same minerals are what you see as spotting and scale.
The supply comes from a chain of reservoirs, Lake Worth, Lake Bridgeport, Eagle Mountain Lake, Benbrook Lake, Richland Chambers Reservoir and Cedar Creek Reservoir, plus the Clear Fork of the Trinity River.
Fort Worth Water sells drinking water to 33 wholesale customers. Keller, Southlake, River Oaks and Westover Hills are among them, along with Haslet, Roanoke and Saginaw, so homes in those cities see much the same spotting.
Southlake publishes its own report, and for 2022 it listed total hardness of 100 to 171 parts per million, or 6 to 10 grains per gallon, on water bought entirely from Fort Worth. Southlake's report also explains that the earthy or musty taste some residents notice now and then comes from natural algae in source lakes such as Eagle Mountain Lake, and that it poses no health risk.
Grapevine and Colleyville are on a different system. Both are among five cities supplied by the Trinity River Authority's Tarrant County Water Supply Project, which treats raw water from Lake Arlington. Their numbers come from their own reports, but the cleaning approach below works for any hard or moderately hard supply.
Hard water marks any surface where water sits and evaporates. In a typical Fort Worth home that means a predictable list.
Use acid on the right surfaces only. White vinegar or a mild commercial descaler dissolves calcium on glass, porcelain and chrome. Let it sit a few minutes, then wipe and rinse. Never use acid on marble, travertine, limestone or unsealed grout, which etch permanently. For stone, use a pH neutral cleaner and dry the surface after each use.
Skip the scouring pads. Abrasive pads and powders remove scale fast, but they leave fine scratches on glass and polished chrome that hold new minerals even faster. A non-scratch sponge and patience work better.
Dry what you can. A squeegee on shower glass after every shower, and a towel over the faucet after dishes, prevents most buildup before it starts. In a home on Fort Worth water, that habit saves more effort than any product.
Know when it is etching. Glass that stays cloudy after a careful descale may be etched, meaning the surface itself has been worn. Etching cannot be cleaned away. Regular care keeps new glass from reaching that point.
When TotalCare Cleaning comes to Fort Worth, every Recurring House Clean will wipe and polish faucets, sinks, tubs and shower glass, which keeps film from building between visits. The One-Time Deep Clean goes further, treating shower glass for hard water spots and detailing faucets at the base and behind the handles. The first visit of any plan, the Initial Deep Clean, uses the same deep scope so recurring visits start from clear glass. See the deep cleaning guide for the full list.
The questions Fort Worth homeowners ask most often about this topic, answered plainly.
TotalCare Cleaning will service Fort Worth and surrounding areas with background-checked cleaners and is insured up to $1 million. Re-clean guarantee: if we missed something, tell us by the end of the next day and we come back to fix it. Beyond Clean. TotalCare.
