WSP Tannin Filter, Purolite TANNIN

If your water runs yellow or tea-colored, it’s likely because of tannins—natural organic compounds leaching from leaves and soil. The WSP Tannin Filter, built on the reliable Purolite TANNIN control platform, helps reduce these stubborn stains and discolorations, improving water clarity throughout your home.

The Problem

You notice your water has an unpleasant yellow or brown tint, especially when filling a glass, doing laundry, or running a shower. That tea-colored water leaves stains on fixtures, toilets, and sinks, and can make towels and clothes look dull or faded. The taste or smell might be earthy or off, making coffee or drinking water less enjoyable.

Why It’s Happening

This discoloration is caused by tannins, organic compounds that naturally come from decayed leaves and peat soils. They dissolve into your water supply and are tough to get rid of because they don’t respond well to regular water softeners or standard filters. A simple test for tannins is to look for the yellow or brown color in untreated water and check if it fades after standing—if it doesn’t, tannins are likely the cause.

What It’s Costing You to Leave It

Leaving tannins untreated means more frequent cleaning to remove staining on toilets, sinks, and bathtubs. Clothes washed in tannin-rich water may come out dull or yellowed, and appliances that use water like your washing machine or coffee maker can start to show deposits or stains. Over time, the quality of your water for everyday tasks like cooking and cleaning is reduced, and you might find yourself using more soap or detergent trying to compensate.

How This System Fixes It

The WSP Tannin Filter works using a process called ion exchange. This means the filter’s special resin attracts and holds onto tannin molecules, swapping them out for harmless ions. As water passes through, tannins stick to the resin, and cleaner, clearer water flows out. Periodically, the system regenerates by flushing the resin with a salt solution, washing away the captured tannins and restoring the filter’s ability to keep working effectively.

What This System Can Handle

This system is designed specifically for removing tannins and other dissolved organic matter that cause yellow or brown water. It’s well suited for residential settings and can work alongside or after a water softener if your water is also hard. The filter can handle typical household water volumes and maintains its effectiveness by regenerating on a schedule based on your water’s tannin content and usage. Compared to smaller or less specialized units, this filter offers robust capacity for persistent tannin issues without frequent maintenance.

What You Actually Get

The package includes the pressure tank protected by a lifetime warranty, ensuring long-term durability. A bypass valve is included, allowing you or your plumber to isolate the filter and keep water running to your home during service or regeneration—something many competitors sell separately. You’ll also receive 10 feet of discharge hose for the drain line, so the system can handle its own flush cycles conveniently.

Is This the Right Size for You

This filter suits homeowners dealing with noticeable tannin discoloration in their water supply, especially if they require a system that can handle continuous household demand. If your tannin levels are low or your water use is minimal, a smaller or different system might be more appropriate. Conversely, if your water source has unusually high tannin levels or you have a large household, you may need to consider a larger capacity system to ensure effective treatment.

Living With It

The system needs routine regeneration to flush out the captured tannins, typically using salt brine. Frequency depends on your water’s tannin concentration and usage, but expect to refill salt and check the system every few weeks to months. The included bypass valve makes maintenance straightforward and hassle-free, letting your plumber service the filter without interrupting your water supply.

What It Won’t Do

This filter is focused on reducing tannins and organic color. It does not address other common water issues like hardness minerals, iron, sediment, chlorine, bacteria, or viruses. For those problems, you would need additional treatment systems designed for each specific concern.

Why Buy It From Us

Water Softener Plus offers this filter with real serviceable components and parts availability well into the future, not a sealed disposable unit. Shipping from Tampa is free and included in the price, and we back the tank with a lifetime warranty. Our team provides reliable sizing and technical advice based on daily experience, so you get the right system for your water conditions—no pressure, no hype. Plus, there’s a 90-day money-back guarantee if it doesn’t meet your expectations.

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

• Yellow, tea-coloured water
• Tannin staining

The Next Step

Order your WSP Tannin Filter today to start reducing tannin stains and yellow water in your home. Our experts are ready to help you confirm sizing and ensure this system is the right fit before you buy.