WSP Twin-Tank Water Softener, C-Series

Do your clothes lose their colour and softness faster than you expect? Hard water often leaves fabrics feeling rough and causes colours to fade, making laundry a chore that doesn’t deliver the results you want. The WSP Twin-Tank Water Softener, C-Series, tackles this issue by supplying continuous soft water without interruption, even during regeneration.

What hard water is doing to your laundry

Hard water means minerals like calcium and magnesium build up in your water supply. When you wash clothes in this water, minerals leave behind a residue that dulls colours and stiffens fabric fibers. Your towels might lose their plush feel, and everyday garments can start looking worn out much sooner than they should. You may notice soap scum in the washer, or that you have to use more detergent and fabric softener to get the same clean.

How the twin-tank control head keeps soft water flowing

The heart of this system is a control head designed with 1.25-inch porting, allowing it to handle a high service flow. It manages two tanks in sequence, so when one tank needs to regenerate — the process of flushing out the trapped minerals — your water supply switches seamlessly to the other tank. This means your home never goes without soft water, avoiding the downtime typical of single-tank systems.

The resin media that does the hard work

Inside the tanks is a high-capacity cation exchange resin. This media traps hardness minerals — like calcium and magnesium — from your water. As water passes through, the resin exchanges these minerals for sodium ions, softening the water. This specific resin is chosen because it’s effective at handling the hardness problem without requiring downtime, which is essential for a twin-tank system where continuous soft water is a must.

Tank size and capacity built for big demands

The tanks hold between 2.5 and about 3.4 cubic feet of resin, packed inside a 13 by 54-inch pressure vessel. Available in two sizes, the system offers softening capacities of 80,000 grains or 110,000 grains to meet different household or commercial needs. The larger size fits sites with continuous, heavy demand—like multi-unit buildings or light commercial settings—while the smaller size suits very large homes with multiple bathrooms and several people.

Choosing the right size for your home or business

This twin-tank system is designed for households with six to eight residents and four or more bathrooms, or for light commercial applications needing a steady supply of soft water. If your water use is less or you have fewer bathrooms, a smaller single-tank system might suit you better. But for uninterrupted soft water in a busy home or site, these twin-tank options excel.

What you get with the WSP Twin-Tank Water Softener

Each system includes a lifetime warranty on the tanks themselves, covering the pressure vessels for as long as you own them. The control valve and electronics carry the manufacturer’s standard warranty. You also get a bypass valve included at no extra cost, so your plumber can isolate the system during service without shutting off water to your house. Additionally, ten feet of discharge hose comes with the system for the drain line connection.

Next steps for continuous soft water

The WSP Twin-Tank Water Softener, C-Series, is a robust choice for those who can’t afford downtime in their water treatment. Because this system is quote-only, reach out to the Water Softener Plus team for a free quote and sizing advice. They’ll ask about your current water problem and ZIP code to match the system’s configuration to your needs and send you pricing details. Take the next step toward better laundry and smoother water by contacting them today.

Who this size is right for

At 110,000 grains of capacity this suits a commercial or multi-unit site - around continuous high demand with many outlets.

Those figures assume average hardness and normal use. If your water is unusually hard, if you have iron as well as hardness, or if the house simply runs more water than most, take the next size up - an oversized softener regenerates less often, while an undersized one runs out of soft water between cycles. Send us your water test if you would like the sizing checked before you order.