Is your tap water stained with a distinct yellow or tea hue that just won’t wash away? This discoloration is more than unsightly—it signals the presence of tannins that can stain fixtures, foul clothes during laundry, and coat your home's plumbing with organic build-up. Left untreated, yellow, tea-colored tannin water can degrade your water quality and your everyday comfort, quietly eroding the cleanliness and safety of your household water supply.

The system that fixes it

The Pentek Yellow Tea-Colored Tannin Water System is expertly engineered to target and remove the stubborn yellow tint caused by natural organic tannins in your water. At the heart of this solution lies the Pentek-series metered control valve—a premium, genuine brand valve that precisely measures your water usage to optimize regeneration cycles, ensuring consistent water clarity while maximizing media life and saving salt. This system is built on a specialty ion-exchange tank designed specifically for tannin removal, housing Purolite tannin-selective anion resin. This advanced resin adsorbs the organic tannins responsible for discoloration and regenerates in a brine solution to maintain effectiveness over time. The combination of sophisticated valve technology, a custom tank, and high-performance media makes Pentek Yellow a reliable defender against yellow tannin water, giving your household clean, clear water with every drop.

• Metered control valve: Accurately measures water flow to trigger regeneration only when needed, saving salt and water.
• Specialty ion-exchange tank: Built tough to handle tannin removal media and withstand constant regeneration cycles.
• Purolite tannin-selective anion resin: Targets organic tannins specifically to eliminate yellow, tea-colored discoloration.
• Serviceable genuine brand valve: Easy to maintain and repair without compromising system performance.
• Optimized regeneration: Uses brine to renew the resin’s capacity efficiently, reducing waste and upkeep.

Pick your size

Select the size that fits your household’s bathroom count and water usage to ensure effective tannin removal without overspending or underperforming. Proper sizing guarantees cleaner water and longer-lasting media.

What it does for your home

• Eliminates the yellow, tea-colored tint that stains sinks, tubs, and toilets.
• Prevents tannin build-up in plumbing, extending pipe and appliance life.
• Improves laundry results by preventing yellow staining on fabrics.
• Delivers clean, clear water that enhances drinking, cooking, and bathing comfort.
• Protects your water heater and fixtures from organic deposits that decrease efficiency.
• Reduces the need for frequent cleaning of surfaces tarnished by tannin staining.

By addressing the specific challenges posed by yellow tannin water, the Pentek Yellow system safeguards your home and improves your daily water experience.

How the media works

The secret to this system’s tannin-fighting power is the Purolite tannin-selective anion resin inside the ion-exchange tank. This resin is specially formulated to attract and bind organic tannin molecules—the compounds that give water its characteristic yellow, tea-like color. As your water flows through the resin bed, tannins are adsorbed and captured, leaving the water crystal clear. When the resin approach saturation, the system initiates a regeneration cycle using brine, which flushes out accumulated tannins and renews the resin’s capacity. This process ensures continuous, effective removal of tannins without frequent media replacement.

Why buy this system from us

Choosing the Pentek Yellow system here means you get a matched one-brand build designed for reliability and ease of service. We include a genuine, serviceable brand control valve head—so when maintenance or part replacement is needed, you’re covered with authentic Pentek components crafted for longevity. Plus, we offer free sizing assistance anywhere in the U.S. to help pick the perfect system size for your home. Once you order, free shipping brings your system directly to your doorstep, making setup seamless. Our commitment is a top-tier Pentek system, expertly matched and supported, dedicated to resolving your yellow tannin water woes.

Common questions

Q? Will this system remove all yellow discoloration caused by tannins?

A Yes, the Purolite tannin-selective anion resin specifically targets and removes the organic tannins responsible for yellow and tea-colored water, significantly improving water clarity.

Q? How often does the system regenerate the media?

A Thanks to the Pentek metered control valve, regeneration occurs only based on actual water usage, optimizing brine use and ensuring the media remains effective without unnecessary cycles.

Q? Can I service the control valve myself if needed?

A Absolutely. The control valve is a genuine Pentek component designed to be serviceable, allowing straightforward maintenance or part replacement to keep your system running smoothly.

Shop the Pentek Yellow, Tea-Colored Tannin Water System →

Prefer another valve brand? The same fix comes in Fleck, Autotrol, C-Series, Pentek and Pentair.