WSP 6 GPM Whole House Sulfate Reduction System

The WSP 6 GPM Whole House Sulfate Reduction System by Water Softener Plus (WSP) is designed to help reduce high sulfate levels in your water supply. Running at 6 gallons per minute, it treats water as it enters your home, addressing the bitter taste and other issues caused by excess sulfate.

The problem you’re living with

If your tap water has a sharp, bitter or medicinal taste, or if you notice it acts like a laxative for anyone drinking it, you’re likely dealing with high sulfate levels. You might also see mineral staining that doesn’t go away with regular cleaning, or find that your coffee and tea taste off. High sulfate water can leave a noticeable film on glassware and fixtures, and sometimes you just don’t want to drink it without flavor complaints.

Why it’s happening

Sulfate is a naturally occurring mineral in many water sources, often higher in well water but sometimes present in public supplies, too. It dissolves easily, so normal water softeners—which target hardness minerals like calcium and magnesium—don’t reduce sulfate. A simple water test showing elevated sulfate concentration is the best way to confirm this is your problem.

What it’s costing you to leave it

Water with high sulfate levels can be unpleasant to drink, leading to waste as family members avoid tap water. That bitter taste also affects coffee, tea, and cooking. Over time, sulfate can cause mineral deposits that stain fixtures and glass and may require more frequent cleaning. Your laundry might look dull or feel stiff from mineral buildup. While sulfate is not hardness, it can still contribute to wear on appliances that use water, causing them to work harder and possibly shortening their lifespan.

How this system fixes it

The system uses a special kind of ion exchange called selective anion exchange, which pulls sulfate ions out of your water as it passes through. Unlike a regular water softener that swaps hardness ions, this system targets sulfate specifically, reducing the bitter taste and other problems linked directly to sulfate. It regenerates itself with salt, refreshing the media inside to keep removing sulfate continuously, much like how a softener renews its ability to remove hardness.

What this system can handle

Rated at 6 gallons per minute, this system treats water for your entire home as it enters the plumbing. It’s designed for homeowners with a documented sulfate issue rather than a simple hardness problem. It handles typical residential water volumes and is built to work efficiently before needing regeneration. The system copes well with the sulfate levels usually found in well water or other supplies where sulfate is a known concern. It falls between smaller point-of-use devices and larger commercial systems, offering whole-house coverage at a steady, reliable flow rate.

What you actually get

This system includes a pressure vessel backed by a lifetime warranty, protecting the tank that holds the media for as long as you own it. The control valve and electronics come with the manufacturer’s standard warranty. A bypass valve is included at no extra cost, allowing you to isolate the system for maintenance without cutting off water to your home. You also receive 10 feet of discharge hose for the drain line, so installation can be completed by your plumber without extra purchases.

Is this the right size for you

If your household’s water use fits within a 6 gallons-per-minute flow rate and you have confirmed sulfate issues in your water, this system is sized appropriately. For smaller homes or lower flow demands, a smaller unit might be more cost-effective. Larger homes or facilities with higher flow needs should consider a bigger system or multiple units. This system is not intended for treating hardness or other water problems except sulfate reduction.

Living with it

Maintenance involves occasional regeneration cycles where salt brine refreshes the media’s capacity to remove sulfate. This cycle is similar to what you’d expect from a traditional softener and depends on your water’s sulfate level and household water use. Your plumber can handle routine servicing, and the bypass valve makes it easy to keep water running during maintenance. The system’s components are designed for long-term use, so upkeep is straightforward but necessary.

What it won’t do

This system is focused on reducing sulfate and does not soften water hardness or remove iron, manganese, bacteria, or other common water problems. If your water has those issues, you might need a separate softener or filtration system tailored to those needs. Confirming your water conditions with a test before installation is important to ensure this system matches your primary water concern.

Why buy it from us

Water Softener Plus (WSP) supplies systems with real, serviceable components and a lifetime warranty on the tank you rely on. We include the bypass valve and discharge hose at no extra cost, which many competitors charge separately for. Our systems ship from Tampa, Florida with free U.S. shipping and come with a 90-day money-back guarantee. When you contact us, you get expert sizing help from people who understand water treatment and work with homeowners daily. We don’t do installation or service visits but make sure you’re ready to have your local licensed plumber complete the job.

Included with this system

• Lifetime warranty on the tank. The control valve and electronics carry the manufacturer's own warranty.
• Bypass valve included, so the system can be isolated for service while water keeps running to the house.
• 10 feet of discharge hose for the drain line.

Specifications

What this system handles

• Sulfate reduction
• Whole-house treatment
• Sized to your water test

The next step

To find out if the WSP 6 GPM Whole House Sulfate Reduction System is right for your home, request a free quote and sizing assessment from the WSP team. Provide your water problem details and ZIP code, and we’ll confirm the exact system configuration and send pricing information tailored to your needs.