Including filter system and high-performance Oxadiazon filter.
Oxadiazon is a herbicide commonly used for weed control that can sometimes enter drinking water supplies through runoff. Because it’s invisible and usually present only at low concentrations, the only reliable way to know whether oxadiazon is in your home’s water is to test for it. Many Littman homeowners choose to treat water where it enters the house so every tap is covered, simplifying protection across showers, laundry and cooking water.
Even when Littman tap water looks clear and tastes fine, synthetic organic chemicals like oxadiazon can be dissolved and undetectable without lab analysis. Oxadiazon is linked to runoff or incidental contamination rather than the minerals that cause scale, so standard softeners or sediment fixes won’t reliably remove it. A whole-house treatment treats all uses — bathing, dishwashing and clothes washing — not just drinking water from a single faucet.
For reducing oxadiazon in most homes, a whole-house activated carbon filter is the most practical and effective option. Activated carbon adsorbs many organic compounds as water passes through the media, and because oxadiazon is an organic herbicide, carbon filtration is the recommended technology for this class of contaminants. When installed at the point of entry in a Littman home, a properly designed carbon system treats water for every fixture and appliance in the house.
To work well for Littman households, the carbon system needs adequate contact time and the appropriate media, such as catalytic carbon or high-capacity granular activated carbon formulated for VOCs and herbicides. Correct sizing matters because excessive flow can shorten contact time and reduce adsorption. Adding a simple prefilter keeps sediment from fouling the carbon bed. Mr. Pure Water can help you size and select a whole-house carbon filter so oxadiazon reduction is steady at every tap.