Can you install an expansion tank sideways?

Expansion tanks can be installed horizontally. Expansion tanks can be installed horizontally. The recommendation that they are installed vertically is to reduce stress on the (normally copper) pipe, which should be adequately supported even if the tank is suspended vertically.Click to see full answer. Keeping this in consideration, where should the expansion tank be installed?Your expansion tank can be anywhere on your plumbing system and does not need to be installed in close proximity to the water heater. It is most commonly installed using a “T” at the cold inlet to the water heater. But, functionally, it can be installed anywhere on the cold inlet line.Furthermore, what line does the expansion tank go on? The expansion tank (potable water type) should be installed on the inlet cold-water line. It can be installed anywhere in the building on the cold-water supply (after the regulator). It is usually installed by plumbers on the cold-water inlet of the water heater. Correspondingly, can I mount my pressure tank horizontally? Answer; Yes it is a factor, the tanks are designed to sit air stem up or air stem down. Sitting a vertical tank horizontally puts more pressure on the lower parts of the bladder and can cause early failure. If it is full of water at the air stem, then you did rupture the bladder.How do I install a new expansion tank?It is recommended to install the thermal expansion tank on the cold water line, horizontally and close to the water heater. Use the threaded T- fitting, Teflon tape, and pipe wrench to make the watertight connection. Remove the trapped air by opening the hot water tap.