How hard is the water in Franklin city, VA?
0.8 grains per gallon
You do not need a softener here.
The median hardness measured in Franklin city, VA is 14 mg/L as calcium carbonate, which is 0.8 gpg. That is soft on the USGS scale. It comes from 33 samples at 5 sites between 1995 and 2022, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 0.6 and 2.3 gpg. The whole middle of that range gives the same answer, so a test of your own tap is unlikely to change it. Confidence in the county figure: medium (how it is measured).
What to do next
You can skip the softener. At 0.8 gpg the most a softener would fix is the odd water spot. If a salesperson in Franklin city says otherwise, ask to see their reading in grains per gallon and compare it with this one.
More on when a softener is not worth it.
From 0.0 to 9.6 gpg
The softest single sample on record in Franklin city was 0.4 mg/L and the hardest 165 mg/L, a 413-fold gap. The top quarter of sites read above 2.3 gpg and the bottom quarter below 0.6 gpg.
Wells 0.7 gpg, rivers and lakes 2.3 gpg
5 groundwater samples from 4 wells put the median at 12.2 mg/L. 28 surface samples from 1 sites put it at 40 mg/L. In Franklin city the rivers and lakes come out 1.6 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. The two sources are close, so the county figure should hold whichever one your tap is on.
Franklin city against the rest of Virginia
Among the 126 Virginia counties with data, Franklin city is number 118 of 126 counting from the hardest. Across the whole country it is harder than 5% of counties.
Softest in Virginia: Isle of Wight County at 0.4 gpg. Hardest: Clarke County at 20.1 gpg. Closest to Franklin city: Gloucester County (0.8), New Kent County (0.8), Rappahannock County (0.8).