Toilet Dye Test for Running Toilets in St. Francis Wood, San Francisco

Heise's Plumbing completed a professional toilet dye test and leak detection service for a homeowner in the St. Francis Wood neighborhood of San Francisco, CA. The customer contacted our office near the historic St. Francis Wood Fountain after noticing their toilet was running constantly and causing their utility bills to rise. Our licensed plumbing technician performed a detailed dye test, placing non-toxic colored tablets into the tank to confirm if water was seeping from the tank into the bowl. We diagnosed a degraded flush valve flapper that was failing to seal, alongside a malfunctioning fill valve assembly. Our team replaced the worn flapper, installed a high-quality fill valve, adjusted the float arm, and tested the toilet's flush cycle. After finishing the repairs, we verified the leak was resolved and confirmed the toilet was operating safely and efficiently. If you need professional leak detection, toilet repair, or general plumbing services, Heise's Plumbing provides expert solutions throughout San Francisco and the Peninsula.

Local Area Note: St. Francis Wood is a premium San Francisco enclave featuring historic estates, beautiful fountains, and mature trees. Mainline plumbing here often deals with roots invading older clay sewer connections under wide easements.