Minnesota Water Softener & Salt Delivery Services
Soft Water, Delivered State-Wide
Minnesota’s city water may look clean, but it’s packed with hard minerals. In fact, Minneapolis and St. Paul average about 5 to 6 grains per gallon (gpg), and nearby suburbs can spike past 25 gpg. Those extra grains stick to pipes, heaters, and membranes, forming rock-like “scale” that chokes equipment, wastes energy, and forces industrial plants, hospitals, hotels and car washes to burn through detergents and replacement parts faster than they should.
Robert B. Hill Co. keeps that scale in check with a full service soft water program. We size softeners to your flow rate, drop salt on a set route so tanks never run dry, and free up floor space with compact storage skids. The payoff is lower utility bills, fewer surprise shutdowns, and more time for your team to focus on customers instead of scraping mineral buildup.
We’ve been engineering and installing tailored commercial water softeners for more than 65 years. Our systems come with a range of customizable features, including:
- Skid-mounted designs for easy installation
- Explosion-proof wiring and control panels for added safety
- Water or pneumatic-actuated control valves for reliable operation
- Brine pumps to optimize regeneration efficiency
- Piping options in stainless steel, carbon steel, copper, PVC, CPVC, and more
- Regularly scheduled water softener salt delivery service
- Local since 1958
What Robert B. Hill Co. Brings to Minnesota Businesses
Robert B. Hill Co. has built and serviced commercial and industrial grade water systems in the Twin Cities for 65+ years. We design and fabricate our equipment in-state, then support it with route-based salt delivery and 24/7 technical service.
Here’s how we serve Minnesotans:
Commercial & Industrial Water Softeners
Robert B. Hill Co. engineers and factory-builds custom water softener skids that slash scale, cut energy use, and safeguard critical equipment for everything from hotels to high-flow industrial lines.
Industrial & Commercial Water Softeners
Water Softener Salt Delivery
Route-optimized drivers bring pallet, bag, or Neusalt™ pneumatic bulk salt straight to your brine tanks, so your team never lifts a bag and your softeners never run dry.
Minnesota Water Softener Salt Delivery
Industrial Filtration & PFAS Removal
Multi-media, carbon, and ion-exchange systems remove sediment, taste/odor, and regulated contaminants, with turnkey programs that target tough PFAS limits for commercial and municipal sites.
Industrial Water Filtration & PFAS Removal
Reverse Osmosis (RO) Systems
High-efficiency RO skids—standard or brackish up to 400 psi—strip TDS for spot-free rinse water, ingredient quality, or boiler feed, and arrive pre-piped and PLC-controlled for quick installation.
UV Disinfection & Deionization
Compact UV reactors and polishing DI cartridges deliver final-barrier protection against microbes and ions wherever ultrapure or code-compliant water is required.
Wholesale Parts & Media
A fully stocked warehouse ships valves, vessels, resin, membranes, and other replacement components statewide, backing OEMs, dealers, and in-house maintenance teams with same-day support.
Our Local Success Stories
We know that every company is unique and has different water treatment needs. It doesn’t matter what kind of water filtration you need or what kind of space you have to work with, we will build a custom solution to fit your needs.
Skid-Mounted Water Softening System for a Chiller Plant
Fabricated and factory-tested at Hill’s St Louis Park shop, then delivered to a Twin Cities cooling-plant customer, this examples shows real metro deployment and in-state manufacturing muscle.
Custom Dual-Train Industrial Softeners for Boiler Feed (Biochemical Plant)
We build high-purity boiler make-up systems in Minnesota and support local process industries that need ultra-low hardness.
Read more case studies here.
Robert B. Hill Co. Is Minnesota’s Trusted Partner in Water Treatment
Designing a commercial water softener system in Minnesota requires careful consideration of complex factors to ensure efficiency and reliability.
Applications and Industries
The first step in the design process is determining the intended application. Commercial water softeners serve a wide range of industries, including:
Daily Demand On the System
Another key factor in system design is the daily demand, measured in gallons per minute (GPM) or gallons per day (GPD). This demand, along with the influent water quality, determines vessel size, pipe size, and control valve specifications.
A well-designed commercial softener should avoid regenerating more than once per day. Proper bed velocity is essential for minimizing pressure loss and extending resin life. While bed velocities can range widely, most designs maintain a rate of 8 to 12 GPM per square foot of resin bed surface area.
How to calculate the capacity of a commercial water softener?
To prevent excessive regeneration, an analysis of influent water quality is critical. Water hardness, primarily composed of calcium and magnesium, is measured in parts per million (PPM) or grains per gallon (GPG). The softener’s capacity is determined by salt dosage, hardness level, and the amount of cation resin per vessel.
A general calculation follows this rule:
Salt dosage of 10 lbs. per cubic foot equals 25,000 grains.
Example:
25,000 grains x 100 cubic feet of resin = 2,500,000 total grains divided by hardness in grains per gallon (30) GPG = 83,333 gallon capacity.
In this example, a commercial water softener with 100 cubic feet of resin and a water hardness of 30 GPG would process 83,333 gallons before requiring regeneration. At a dosage of 10 lbs. of salt per cubic foot, the system would use 1,000 lbs. of salt per regeneration cycle.
Ready to Get Started?
Looking for a custom quote for your water treatment project? Fill out our online form and a water treatment specialist will return your message.
Locations Served
| Blaine | Bloomington | Eagan |
| Eden Prairie | Maple Grove | Minneapolis |
| Plymouth | St. Paul | Don’t see your location? Call Us! |
Commercial Water Softeners for Boilers Feeds & Cooling Towers
Two of the most common uses for commercial water softeners are boiler feed systems and cooling towers. Boiler feed systems often rely on alternating water softeners to maintain a continuous supply of softened water. In these applications, system capacity takes priority over flow rate since boiler efficiency depends on consistent water quality. Higher-pressure boilers require even stricter water treatment to prevent scale buildup and corrosion, which can reduce performance and lead to costly downtime.
For cooling towers, commercial water softeners help prevent scaling by removing calcium and magnesium from the make-up water. They can also function as a side-stream softening system, continuously treating a portion of the circulating water. This process significantly reduces the risk of scale accumulation, improving heat transfer efficiency and lowering maintenance costs. Investing in a high-quality, customized water softener leads to long-term savings by enhancing energy efficiency, extending equipment lifespan, and minimizing repair expenses.
Ready to Get Started?
Let us help you improve efficiency, reduce maintenance costs, and extend the life of your equipment.