Performed leak detection at 16225 Sally ln, riverside Ca. Upon arrival customer complained about hot tiles. Performed pressure test and immediately failed. Went to location of hot tiles in kitchen used leak detector go high reading at water heater and kitchen performed cut and cap on manifold. Upon opening behind water heater noticed water coming out of slab cut one branch and notice water not holding in pipe cut and cap was performed. Pressure test failed again. Cut and cap second middle line performed pressure test and hold. 2 hot water lines affect areas are hot to master and guest bathroom, and kitchen sink. Recommend a pex push for kitchen sink and reroute for master and guest bathroom.