The tenants complaint is that they are hearing a loud thump noise and some hissing coming from the water heater closet We could not recreate the noise or the hissing noise We did find that the water pressure is at 140psi Which could explain the noises if they are coming from the t&p on the water heater The water heater is a 2022 model We removed the water heater and replaced the prv and reinstalled the water heater Job completed No new estimates needed