Fontana Black Bronze 3-Way Concealed Shower Mixer FAQ
Three-Outlet Isolation, Diverter Indexing & Concealed Valve Commissioning
This black bronze wall-mounted shower mixer combines a one-piece brass valve body,
ceramic flow regulation, and an integrated three-way diverter for controlled shower-function selection.
How should the three outlet branches be identified during concealed rough-in?
Label each concealed branch for its designated shower function and confirm that every diverter position corresponds with the intended overhead shower, hand shower, or auxiliary outlet.
What confirms correct hydraulic isolation between the three outlets?
Cycle every indexed diverter position under operating pressure and verify stable discharge from the selected branch with no bypass, dripping, or cross-flow through either inactive outlet.
Which concealed joints must be tested before waterproofing?
Pressure-test the hot and cold inlets, one-piece brass mixer body, diverter chamber, threaded seals, and all three outlet connections while the complete assembly remains visible.
How should the ceramic valve core be protected during commissioning?
Flush the supply pipes and all outlet branches before final cartridge operation to remove scale, solder fragments, sealing compound, and construction debris from the internal waterways.
