Hi all. I am installing a new 50 gallon gas water heater and expansion tank (there wasn't one before) and am looking for the best method to install the expansion tank. I have a picture of the current setup below where flex lines run to the water heater and I want to install this expansion tank without doing any soldering or modifying of the plumbing. The most common thing I have seen on the web is to put a tee (is brass best or galvanized?) at the top of the tank, run a short length of pipe out of the side of the tee, put a 90 on the end of that and screw the tank into it. The problem I see with that is if the tank fails and fills with water, there will be all of that stress on the water inlet. Can that be resolved by just placing a block of wood under the horizontal pipe to keep the weight off of the pipe? The only other thing I thought of was mounting the tank to the wall with a bracket and running a flexible corrugated line from the tee to the tank. Let me know if either of these methods are better or if you have another idea.