Flushometers, faucets, traps, drains, and routine commercial restroom repairs.
If a manual commercial flushometer will not shut off, close the control stop first. Common causes include a blocked metering bypass, debris under the diaphragm, damaged internal parts, the wrong repair kit, or inadequate supply pressure.
A manual flushometer that will not flush usually has a closed or restricted control stop, a blocked handle/relief passage, worn internal parts, or insufficient building water pressure. Start with water supply and handle operation before opening the valve.
When a commercial sensor faucet will not run, separate the problem into sensing, power, water supply, and solenoid operation. Many easy fixes involve batteries, a dirty sensor window, closed stops, a clogged aerator, or a model-specific reset.
A leaking sink trap is usually caused by a loose slip joint, crooked washer, cracked nut, damaged tubular piping, or a partial clog that makes joints seep. Dry everything first, then run water and identify the first point that gets wet.
A slow commercial sink is commonly caused by debris in the strainer, pop-up, tailpiece, P-trap, or nearby branch drain. Start with the easiest removable components and avoid creating a chemical hazard for whoever opens the drain later.