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The City of Portland, Oregon

Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.

Customer Service: 503-823-7770


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Commercial Leak Detection - Flush Valve Toilet Leaks

Flush Valve Toilet Leaks -

Leaks in flush valve style toilets are less obvious. Streaks of orange or blue staining on the fixture itself are often indication of a leak at the inlet valve. A larger leak might be visible as small streams of water continuously flowing down the inside of the fixture after the flush has completed. Sometimes a smaller leak might create tiny disturbances in the water surface in the bowl as droplets slide down the sides of the bowl. If there are always drops of water above the water surface even hours after the last flush, this could indicate a small leak. And if the water surface level declines significantly over time between flushes, there could be a leak in the outlet valve seal. Leaks in a flush valve type toilet need to be fixed by a plumber or maintenance staff member who is familiar with this procedure.