Why a shower door in Milford scales up faster than one in Novi: a town by town look at the water systems of the Detroit North suburbs and how to clean the spots and stains each one leaves.
The suburbs around Northville do not share one water system. Some buy treated Great Lakes water through the regional authority, while others pump from their own wells, and the difference shows up on every glass shower door, faucet and toilet bowl.
This guide sorts the area by water source, explains what each one tends to leave behind, and lays out cleaning methods that remove the buildup without damaging fixtures.
The Village of Milford reports an average water hardness of 25 grains per gallon. For comparison, water is commonly described as very hard once it passes about 10.5 grains per gallon, so Milford's supply is more than twice that line. Calcium and magnesium in the water dry into a white, rough crust wherever drops evaporate: shower glass, faucet bases, the edge of sinks, tile grout and the inside of kettles and coffee makers.
Homes on village water see that crust quickly. A glass door that is not squeegeed can turn cloudy within weeks, and faucets build a ring at the base where water sits. Homes on private wells outside the village may have different water, so test or check with your installer if you are not on the public system.
South Lyon draws its public water from three wells between 120 and 125 feet deep. When the city renovated its treatment plant in 2002, it added more iron filtration along with more pumping capacity, which tells you iron is a real feature of the local groundwater.
Iron that slips through, or that comes from older household pipes, shows up as orange or rust brown stains at the waterline of toilets, in tubs below the faucet and on white sinks. These stains respond to cleaners made for rust and mineral stains on porcelain, used with a soft pad. Bleach can set some iron stains rather than remove them, so skip it on rust marks.
Lyon Township treats its public water at two plants, Woodwind and South Hill, and softens it. Woodwind has supplied softened water since 2023, and the South Hill plant was upgraded to soften the rest of the system.
Softened water leaves much less scale, so Lyon Township homes on public water tend to have clearer glass and cleaner fixtures than nearby homes on hard well water. Soap scum still builds, and softened water can make soap feel slippery and harder to rinse, so shower walls and doors still need regular cleaning.
Novi buys treated water from the Great Lakes Water Authority for about 15,400 customer accounts. Most of it comes from the authority's Lake Huron plant near Port Huron, and a smaller share from its Springwells plant in Dearborn. Plymouth's 2025 water report names the Detroit River as its source.
Treated lake and river water usually leaves lighter deposits than very hard well water. Spots still form on glass and chrome over time, especially where water dries without being wiped, but they lift with milder products and less effort.
Whatever your water, the approach is the same: dissolve the deposit, do not grind it off. Abrasive powders and scouring pads scratch glass, chrome and acrylic, and the scratches then catch more minerals.
A One-Time Deep Clean treats shower glass for hard water spots, details faucets at the base and around the handles and cleans the grout lines where mineral film collects. In a Milford or South Lyon home that has gone months without that work, the first visit makes the biggest difference, and regular visits after that keep the buildup thin enough to stay ahead of. See the deep cleaning guide for the full list.
The questions Northville homeowners ask most often about this topic, answered plainly.
TotalCare Cleaning will service Northville 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.
