For this customer he wanted us to install a recirculating pump on the hot water line and install it with the flexible connection on the gas water heater, i told them unfortunately we don’t use the flexible connections so therefore we have to hard pipe the water lines and that is what we completed. To add to that, the comfort valve needs to be installed as well. We did not do this part of the service due to fact of the current configuration of the supply lines underneath the sink and the faucet. The faucets are 20 years old and the supply lines are as well. The service stops are on cpvc and followed by Pex supply lines that are 20 years old. In order to install the comfort valve properly we would have to have the faucet replaced in order to make the proper connections. At this time the homeowner declined, to do that part of the service, didn’t complete due to liable issues. Recommendation to install the comfort valve tee Replace lavatory faucet, replace both hot and cold service stops