Where should a shut-off valve be located on a tank tee for residential installations?

The shut-off valve should be located on the outlet of the tank tee for residential installations. This positioning allows for effective control of water flow from the tank to the fixtures or appliances it supplies. When the valve is placed on the outlet side, it ensures that the flow of water can be stopped when necessary, making it easier to perform maintenance or repairs on the connected appliances without having to drain the entire tank.

Positioning the shut-off valve on the outlet is also beneficial in terms of safety and convenience; it allows for quick isolation of the water supply should there be a leak or other emergency. This setup enhances the overall functionality and accessibility of the plumbing system, ensuring that homeowners have control over water usage and can respond promptly to any plumbing issues.

The other locations mentioned, such as the inlet, middle, or bottom of the tank tee, would not provide the same level of control or convenience and could complicate maintenance procedures.