Plumbing
12-story office building, built in 1987. Tenants on floors 7-10 complaining about water hammer — loud banging when fast-closing valves actuate (solenoid valves on coffee machines and dishwashers mostl...
Bidding a new restaurant build, 120-seat, full commercial kitchen. AHJ requires an indoor grease interceptor. PDI standard says to size based on drainage fixture units and flow rate, but the owner's a...
Getting push-back from a homeowner about the backflow preventer requirement on their new irrigation system. They say "my neighbor's system doesn't have one." AHJ requires a double-check valve assembl...
Customer wants to replace a 75-gallon tank water heater with a tankless unit. Family of 6, 4 bathrooms, laundry on hot. Located in Minnesota so incoming groundwater is cold — around 38°F in winter. I...
Pricing out a radiant floor heating system for a 3,000 sq ft addition — about 1,200 feet of tubing in a concrete slab. The spec says PEX-A but my supplier is pushing PEX-B at a significant cost saving...