Setup, Compatibility & Care
To install the Thomas Dudley 1-inch washer, first shut off the water supply and drain the cistern. Remove the existing nut and old washer, then slide the new poly washer onto the shank. Ensure the washer is seated squarely against the mounting face before tightening the retaining nut. Over-tightening can deform the washer, so aim for a firm, hand-tightened fit followed by a quarter-turn with a wrench. This component is compatible with most standard 1-inch tank-to-pan plumbing kits. To care for the unit, periodically inspect for mineral deposits; if the washer becomes stiff or shows signs of cracking during a system teardown, it should be replaced to maintain the integrity of the seal.