Tannin Removal System - Yellow / Tea-Colored Water

Clear yellow, tea-colored tannin water

If your water looks like weak tea or leaves a yellowish tint on laundry and fixtures — yet tests clear of iron — the cause is usually tannins. These are natural organic compounds that leach from decaying vegetation and are common in shallow wells and surface-influenced water. They are harmless to health but stubbornly discolor everything the water touches.

Why tannins need a specific resin

Tannins are organic, not mineral, so a standard softener or sediment filter will not remove the color. This system uses a tannin-selective anion resin designed to capture those organic molecules and restore clear water throughout the home.

How it clears the color

Water passes through the tannin resin bed, which binds the organic compounds and releases clear water. The resin is periodically regenerated with salt, much like a softener, so it keeps working for years. Because tannins often accompany hardness or low pH, the correct dose and any companion treatment depend on your full water profile.

Worth knowing

• Confirm it is tannins with a test — color plus a negative iron result is the tell.
• Staging matters when hardness or acidity are also present.
• Salt regeneration keeps the resin performing long-term.

Send us a water test and we will confirm the configuration and size it to your flow. Ships free in the US with manuals and expert support to bring clear, uncolored water back to every tap.

Why tannins fool people

Tannin water is frequently mistaken for iron because both can tint water, but tannins come from decaying leaves, peat, and vegetation rather than metal, and they will not respond to an iron filter. They are most common in shallow wells, wells near wetlands or heavily wooded areas, and surface-influenced supplies. A simple test that rules out iron while confirming organic color points clearly to tannins.

Keeping water clear long-term

Because the tannin resin regenerates with salt on a schedule much like a softener, ongoing care is familiar and low-effort. We help you set the right regeneration based on your color level and any accompanying hardness, provide full manuals for installation, and remain available so your water stays consistently clear rather than drifting back toward that tea-colored tint.