Fluidmaster is the #1 toilet repair brand worldwide, manufacturing high-performance fill valves, flush valves, flappers, and installation kits for residential and commercial plumbing.
Fluidmaster is a globally recognized leader in the plumbing industry, dedicated to engineering superior toilet repair parts and accessories. Founded in 1957, the company transformed the market with its innovative pilot fill valve technology and has since become the preferred choice for plumbers and DIY homeowners alike.
Headquartered in San Juan Capistrano, California, Fluidmaster provides a comprehensive range of products including fill valves, flush valves, flappers, tank levers, connectors, and automatic toilet bowl cleaning systems. With a focus on water conservation and ease of installation, Fluidmaster products are designed to fix common toilet problems such as running, leaking, or weak flushing.
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No. Do not use in-tank drop-in toilet bowl cleaners containing bleach or chlorine. Use of such products can damage tank components, cause flooding, and will void the Fluidmaster warranty.
Fluidmaster offers a limited express warranty for many of its products. You can contact their technical services department or visit the warranty details page on their website. Proof of purchase is typically required.
Technical support is available Monday through Friday from 5:30 AM to 5:00 PM PST at 1-800-631-2011.
Most Fluidmaster fill valves have an adjustment screw or dial. Turning the adjustment screw clockwise generally raises the water level, while turning it counter-clockwise lowers it.
A running toilet is often caused by a faulty flapper that isn't sealing properly or a fill valve that needs adjustment or replacement. Check the flapper seal and ensure the fill valve shuts off at the correct water level.