you should be worried about that, but maybe more so that the CPVC plastic is attached directly to the tank. There should be AT LEAST 18" of copper between the tank and the plastic, with the expansion tank attached to the copper and PROPERLY supported with hangers or anchors.
Curious if you had a licensed plumber install that joke bit, or was it a mentally challenged handyman?
Dont be worried. Be ANGRY.
The box that Watts tanks come in has suggested methods for installations. What you have is not one of these methods. If I was a professional plumber, which I am not, I would be ashamed of this installation. Not only for how the tank is installed, but the rest of the installation as well. Others have already chimed in on the problems, so no need to restate them.
This is awkward, but...
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