Call for leaking dishwasher stop valve. Arrived and spoke with Mr. Brennan. He has the main house, and an additional tiny house in the back. The tiny house had a new dishwasher installed and the shut off valve developed a leak. Assessment shows that the shut off valve is old, and corrosion present along this section of pipe. I attempted to check water pressure, but hose spigots are winterized, and the water heater is incredibly old and has a plastic twist port. Also found loose p trap nut, and tightened to prevent continued drip from drain. Noticed a third drip spot and found that water has been splashing back along wooden backsplash, and wood appears to not be waterproofed. Recommend handyman address this issue to prevent further damage behind and under sink. I cut away corroded valve and pipe, and installed two dedicated quarter turn shut off valves. Reattached faucet and dishwasher, checked for leaks. With the exception of the water heater, no immediate concerns present in tin