Termites love moisture, no wait, they NEED moisture to survive, so it's not surprising that a big part of a good inspection requires checking for sources of moisture. A storage hot water unit has a relief valve that is often dripping water. This persistent source of moisture is ideal for termites, as they need a reliable source of water to survive. Ensure that this water is piped away rather than dripping against the footing of your house, openly inviting termites.