Connecting the expansion tank using galvanized pipes and fittings will have a negative effect on your potable water quality by adding rust to your plumbing system. plumbers use galvanized parts to make connections between the expansion tank and the water heater trying to save about $10.
Even one piece of galvanized pipe in your water system is enough to make your faucets drip after 5-6 years of the water heater replacement.
we use all brass pipes and fittings to connect devices such as expansion tanks or mixing valves on water heaters.
if you see galvanized parts used on your water heater call us and we will swap them out for you before the rust destroys your faucets