WSP 15,000–64,000 Grain Mineral Tank - Metered

When a guest sets down a glass and wrinkles their nose at a faint metallic taste or notices water spots on the sink, it’s a sign your home’s water isn’t as soft as it should be. The problem often starts deep inside the mineral tank that holds the media responsible for treating all the water flowing through your pipes.

The hidden heart of your water treatment system

That mineral tank is where the real work happens. It’s a pressure vessel holding a bed of special resin beads that soften your water by trapping hardness minerals like calcium and magnesium. Over time, the tank’s condition and capacity directly affect how well your water feels and performs throughout your home. When the tank isn’t properly sized or has aged, you notice the signs: stubborn mineral stains in the bathroom, soap that won’t lather, or a slightly harsh feel to your skin after showering.

Smart control head that regenerates on demand

The control head on this mineral tank is designed for efficiency and convenience. Unlike older models that regenerate at fixed intervals regardless of water use, this one measures your actual water consumption and triggers regeneration only when needed. That helps save salt and water month after month. It includes a double backwash cycle to handle heavier iron loads and a digital display for easy setup and monitoring from your phone.

Proven media built to target hardness and light iron

Inside the tank, a fine-mesh cation exchange resin takes on hardness minerals by swapping calcium and magnesium for sodium ions. This resin also tolerates light iron, which can cause staining and odd tastes. The resin is specially cross-linked — 10% for longer life in chlorinated water and 8% for effective softening — so it lasts through years of service without losing performance.

Tank size and capacity built for busy homes

The tank itself measures about 12 inches in diameter and 52 inches tall, holding roughly 2 cubic feet of media. This size supports a softening capacity of up to 64,000 grains and can handle flows between 6 and 15.5 gallons per minute. In practical terms, it suits a larger household with 5 to 7 people and up to 4 bathrooms, keeping water soft and comfortable even during peak use.

Who this tank fits best in your home

This mineral tank is ideal if your household is on the larger side—five or more people with multiple bathrooms—or if your current system struggles to keep up during high demand. For smaller homes or fewer bathrooms, a smaller tank could be more efficient. Conversely, if your water hardness or flow is unusually high, you might consider sizing up to ensure consistent performance.

What comes with your order and what to expect next

When you order, you get the mineral tank with a lifetime warranty on the pressure vessel itself. The control valve and electronics carry the manufacturer’s warranty as provided. Shipping within the U.S. is free and included in the price. After ordering, you or your licensed plumber can install the tank, integrating it into your existing whole-house water treatment system. For help with sizing or setup, our experienced team is available to guide you through the process.

Who this size is right for

At 64,000 grains of capacity this suits a large home - around 5-7 people with 3-4 bathrooms.

Treat those numbers as a starting point. Hardness varies enormously from one supply to the next, and iron eats into softening capacity as well, so a house with hard water and iron should size up rather than sit exactly on the figure. Send us your water test if you would like the sizing checked before you order.