Performed leak detection at 11485 Mojave dr. Customer complaint of hot tiles. And hot rest room Technician performed pressure test. Immediate failure Technician used acoustic leak detection equipment to find POI POI from leak detection is behind master bathroom shower. And water heater. Performed cut and cap and line location hot side 1/2” manifold leads to kitchen sink. Cut and capped at kitchen sink to stop feeding burst water line to shower manifold. Performed pressure test again to confirm no other leaks. Appears to have been leaking for 48-72hrs. Affected areas being master bathroom no hot water and guest bathroom in hallway no hot water to fixtures