We replaced the homeowner’s existing Insinkerator with a new unit provided by John the Plumber. After installation, we tested the system and no leaks were observed. The reverse osmosis filter needs to be changed, and the homeowner will have Culligan handle the filter replacement. The system was left connected. We did not touch the filters due to the shutoff being controlled by a needle valve. Instead, we shut off the water from the main valve located in the water heater closet. While on site, we inspected the water heater and recommended replacement. The homeowner signed the quote, and we will schedule the replacement once the permit is ready. We also replaced all four faucet cartridges, and the faucets are now functioning properly. The toilet in the hall bathroom was reset under warranty. No further recommendations at this time. We will follow up to schedule the water heater installation once the permit is finalized.