Home›Service Area›St. Petersburg
Water Treatment in St. Petersburg, FL
St. Pete buys its water from Tampa Bay Water — a blend that runs about 9.6 grains hard and is treated with chloramine. Softer than Tampa, still hard enough to spot your glasses. We size your system from the city's own report and price it on the phone. No in-home appointment.
What's actually in St. Pete's water
Unlike Tampa, St. Petersburg runs no wells of its own — it buys 100% of its water from Tampa Bay Water, a rotating blend of Floridan Aquifer groundwater, river water, and desalinated seawater. These figures are from the City of St. Petersburg's 2024 Water Quality Report:
- Hardness — 165 mg/L, about 9.6 grains per gallon. "Moderately hard" — softer than Tampa's 10.8, but still enough to scale fixtures and spot glassware.
- Disinfectant — chloramine. The regional standard; the "pool" taste. It takes catalytic carbon to remove well.
- Low sodium (13.5 mg/L) and pH around 8.2. Because the blend shifts seasonally, hardness and taste can move a little through the year.
What that means for your home
At ~9.6 grains you'll still see scale on faucets and shower glass, spotting on dishes, and soap that won't lather — just a notch milder than inland Tampa. Most St. Pete homes do well with a softener plus catalytic carbon: the softener handles the hardness, the carbon handles the chloramine taste. Add an under-sink reverse-osmosis system if you want the highest-purity water for drinking and cooking.
How we do it
Give us your address and we pull St. Pete's published report for your area, combine it with your household size and what you're experiencing, and recommend a system sized to it — with the installed price on the phone. A licensed, insured plumber does the install. No in-home sales appointment, and if you only need part of it, we'll tell you.
St. Petersburg Water — Common Questions
How hard is St. Petersburg's water?
Moderately hard. The City of St. Petersburg's 2024 Water Quality Report lists finished-water hardness at 165 mg/L, which is about 9.6 grains per gallon. That's softer than Tampa's supply but still hard enough to leave scale and spot glassware, so a softener still makes sense for most St. Pete homes.
Where does St. Pete's water come from?
St. Petersburg buys 100% of its water from Tampa Bay Water, the regional wholesaler — a rotating blend of Floridan Aquifer groundwater, river water, and (in most years) desalinated seawater. St. Pete runs no wells of its own. Because the blend shifts through the year, the hardness and taste can vary slightly by season.
Does St. Pete use chlorine or chloramine?
Chloramine (chlorine combined with ammonia), like the whole Tampa Bay region. That's the source of the 'pool' taste and smell. Removing it well takes catalytic carbon — standard carbon, used in a lot of budget systems, handles plain chlorine but struggles with chloramine. We size the right media for it.
Do you have to come to my house to give me a price?
No. We read St. Pete's published water report for your area, combine it with your household size and what you're seeing, and give you the installed price on the phone — usually in about ten minutes. A licensed, insured plumber does the install. No in-home sales appointment.
See what's in your St. Pete water — and what it costs to fix
No visit required, and no pitch. Tell us where you are and what you're seeing; we'll tell you what you need — and what you don't — and the installed price on the phone, usually in about ten minutes.