The tenants complaint is that they run out of hot water They told us resi sent a different company out that installed a new ball valve on the water heater to shut it off We turned the water heater on and there is a load sound of water flowing We checked the t&p nothing coming from it We found no leaks on or around the water heater We then Checked in the master bathroom and with nothing on you can hear water flowing After being told that the shower had been worked on I cut the wall above the tub open to determine if the water sound was there I did not find the leak but I did find where the top of the slab is wet We also found the water pressure is high 85 At this point it is showing to be a slab leak possibly under the master bathroom Roman tub Need to send a leak detection specialist to pin point the leak We did replace the prv Job not completed Estimates are built I want to get with management before sending