
Delafield, Waukesha County
Water softener installation in Delafield, WI
14–23 grains per gallon · Wisconsin DNR compliance samples for municipal water
Delafield is a private-well town with a small city utility on the side. The city says plainly that most residents have private wells, so what people here actually live with is raw Waukesha County groundwater that nobody samples but them.
Your water
Where Delafield gets its water
Delafield is served by the City of Delafield waterworks, which by the city’s own account serves a minority of residents. It runs two municipal wells: one 1,215 feet into the deep sandstone, one 220 feet into the shallow aquifer. DNR records the system as 100% groundwater with no purchased water.
Two municipal wells, sampled the same day: 240 mg/L at the deep well, 400 mg/L at the shallow one.
DNR compliance samples taken on the same day measured 240 milligrams per liter at the 1,215-foot deep well and 400 at the 220-foot shallow well. That is 14.0 grains and 23.4 grains from one system on one day. Those figures apply only to the minority of Delafield on the municipal system.
Source: Wisconsin DNR compliance sampling, City of Delafield waterworks; City of Delafield utilities page
What Delafield homes usually need



- Free quote by phone
- Installed by a licensed WI plumber
- Softeners retested to zero
$3,950 installed for the ZeroGrain One: softener, activated carbon and the reverse-osmosis drinking tap. Installation by an independent licensed Wisconsin plumbing contractor is in that number, not added to it, and the date is set once the equipment is in hand and approved for use in Wisconsin (SPS 384). What a softener costs explains what the $3,950 includes. Swapping out an old unit is replacing a softener; the drinking tap is reverse osmosis installation.
Get your free quote
Takes about thirty seconds. We call you back the same or next business day.
In writing
Three things you get in writing
Every one of these is written on the quote or the agreement, not a promise on a call.
3 days
To change your mind
Three business days to cancel after you sign. Two copies of the cancellation notice come with the contract, filled in and dated.
0
Balance due before the install is complete
The agreement puts full payment at the completion of the install: the system in, running and your water retested at your tap.
30 days
The quote holds
One itemized page with every model named, so you can compare it against anyone.
A closer look
The ZeroGrain One, up close
The system in product renders: the softening tank and its brine tank, the drinking-water tap, and what is inside the tank, on one sheet.




Questions
Delafield water questions
Anything that is not here, ask it on the call.
Softening removes hardness minerals. It is not a health or safety treatment and we do not market it as one. On a private well, Wisconsin’s state-certified lab tests for bacteria and nitrates are a separate matter and not something we sell.
Two wells, two aquifers, nearly double the hardness
If two municipal wells a few thousand feet apart differ by nine grains on the same day, two private wells on the same road can too. This is the clearest argument in the county for reading your own tap rather than borrowing a neighbor’s number.
Iron right at the staining line, and chloride climbing
Delafield’s shallow well has measured 0.35, 0.40 and 0.40 milligrams per liter of iron across 2008, 2017 and 2026, against the EPA secondary standard of 0.3 where staining becomes noticeable. Chloride in that same well climbed from 6.4 mg/L in 2008 to 89 mg/L in 2026, with sodium rising alongside it. That rise is one more reason the number at your tap today is the only one worth acting on.
How does the quote work in Delafield?
We start from the number, not from a catalog: what Wisconsin DNR compliance samples show for Delafield, and what your house needs. One short call puts the two together, at no charge. If the numbers justify softening we size it from them; if they point away from softening, the call says so plainly. On install day the plumber reads hardness, iron, chlorine and TDS at your tap before anything is connected, and on a softener install retests hardness at the end so you watch it read zero.
Free quote, by phone
A free quote by phone, anywhere in Delafield.
One short call, about fifteen minutes. We size from your town’s published number, or your well’s lab result, and your household, and you end the call with a one-page itemized quote.
- Free quote by phone
- Installed by a licensed WI plumber
- Softeners retested to zero