How hard is the water in Lake County, FL?
9.1 grains per gallon
A softener is worth it here.
The median hardness measured in Lake County, FL is 156 mg/L as calcium carbonate, which is 9.1 gpg. That is hard on the USGS scale. It comes from 601 samples at 83 sites between 1990 and 2017, drawn from groundwater wells, which is what most taps and private wells in the county draw on.
How much it varies here
Half the sites came in between 7.4 and 13.2 gpg. That spread crosses a decision line, so some homes here land on a different answer. A $10 test strip on your own tap settles it. Confidence in the county figure: high (how it is measured).
What to do next
At 9.1 gpg a softener is worth getting, mainly to protect the water heater and cut soap use. Get at least two quotes, ask each installer what grain capacity they are fitting, and check it against the sizing table below. Because Lake County straddles a decision line, check your own tap with a $10 test strip before you spend anything.
More on sizing a softener for your household.
From 1.0 to 31.3 gpg
The softest single sample on record in Lake County was 17.7 mg/L and the hardest 535 mg/L, a 30-fold gap. The top quarter of sites read above 13.2 gpg and the bottom quarter below 7.4 gpg. So even here some sites draw water soft enough to need nothing at all.
Wells 9.1 gpg, rivers and lakes 6 gpg
601 groundwater samples from 83 wells put the median at 156 mg/L. 4,237 surface samples from 280 sites put it at 103.1 mg/L. In Lake County the wells come out 3.1 gpg harder. Groundwater sits in contact with rock for years and picks up calcium and magnesium as it goes, so wells usually read harder. A utility here that draws from the river can deliver noticeably different water from a private well next door.
What a softener would cost to run
For a household of 3, a 24,000-grain unit covers a week between regenerations. Expect about 199 lb of salt a year (5 bags of 40 lb, about $36), and roughly 2,346 gallons of regeneration water. Installed, most units run $1,000 to $4,500; spread over 15 years with salt, that is about $136 a year.
Sizing at 9.1 gpg
| People | Grains a day | Unit | Salt a year |
|---|---|---|---|
| 1 | 546 | 24,000 | 66 lb |
| 2 | 1,092 | 24,000 | 133 lb |
| 4 | 2,184 | 24,000 | 266 lb |
| 6 | 3,276 | 24,000 | 399 lb |
Lake County against the rest of Florida
Among the 67 Florida counties with data, Lake County is number 36 of 67 counting from the hardest. Across the whole country it is harder than 47% of counties.
Softest in Florida: Washington County at 0.3 gpg. Hardest: Sarasota County at 32.2 gpg. Closest to Lake County: Seminole County (9), Wakulla County (9), Pasco County (9.3).