WSP Mineral Tank - Commercial

These mineral tanks are the pressure vessels that hold the media bed for whole-house softening and filtration systems designed for commercial or multi-unit sites. They come in a range of sizes suitable for high-demand water treatment, providing the sturdy containment media needs to reduce hardness minerals and scale buildup.

What the installer first notices in the plumbing

When a plumber looks at a commercial or multi-unit water treatment installation, one of the first things they see is a large, durable tank where the water treatment media sits. This tank is not just a container — it must safely hold pressure while water flows through the media inside. It’s the backbone of the softening system, critical for its performance and longevity. Without a properly sized and reliable tank, the media won’t work as intended, and the whole system’s effectiveness suffers.

The role of the control head on top of the tank

The control head mounted on these mineral tanks manages when the system regenerates, or refreshes, its media bed. It measures how much water you use and triggers regeneration only when needed, rather than on a simple timer. This demand-initiated regeneration saves salt and water by avoiding unnecessary cycles. Different control head models are available, including metered demand and alternating versions, as well as time-clock options for specific setups.

What the media inside the tank does

The tank holds a high-capacity cation exchange resin designed to target the hardness minerals in your water. This resin swaps hardness ions like calcium and magnesium with sodium ions, which reduces scale buildup on pipes and appliances. The choice of this media is essential because it directly addresses the common causes of scale and hard water issues in commercial and multi-unit water systems.

The tank sizes and what they mean for your water system

These mineral tanks come in several sizes, with tanks roughly 14 or 18 inches in diameter and 65 inches tall, holding media volumes from about 3.75 to 6.25 cubic feet. The smallest tanks provide around 120,000 grains of softening capacity, while the largest can handle up to 1,200,000 grains. This translates to the ability to treat tens of thousands of gallons daily, ensuring continuous soft water supply for sites with high water use and many outlets.

Who should consider these tanks for their water setup

This mineral tank family is designed for commercial or multi-unit properties with continuous, high water demand. If your site has multiple bathrooms, laundry facilities, kitchens, or any setup with many water outlets running regularly, these tanks are likely sized for you. For smaller homes or low-demand systems, a smaller residential tank would be a better fit. Conversely, the largest tanks in this range suit the biggest commercial or multi-unit buildings needing robust, ongoing treatment capacity.

What comes with the tank and how it works for you

Every mineral tank from this line carries a lifetime warranty on the pressure vessel itself, giving you long-term confidence in its durability. The control valve and electronics have their own manufacturer’s warranty terms. The exact configuration, including the control head model and media volume, will be confirmed when the system is sized for your water conditions and flow requirements.

How to move forward with sizing and pricing

Because these tanks are quote-only, the next step is to contact Water Softener Plus (WSP) for free sizing and pricing. Provide details about your specific water problem and your ZIP code, and the WSP team will help confirm the right tank size and setup for your needs. This ensures you get a system tailored to your water’s chemistry and your facility’s demand.

Who this size is right for

At 120,000 grains of capacity this suits a commercial or multi-unit site - around continuous high demand with many outlets.

Those capacities assume a household using roughly 75 gallons per person per day at average hardness. Long showers, a big laundry load or a well with iron in it all push the real figure up, so size for your worst week rather than your average one. Send us your water test if you would like the sizing checked before you order.