Tank induced stress?

[Parker]

It freaked me out as well. I was more worried about leaving the RODI running overnight and overflowing the tank. I knew it was impossible as it's only a 75 gpd unit but still, I didn't sleep for two days...

I didn't worry too much about the tank breaking, I'm kind of an optimist in that regard. Hey the tank broke, cool! I get new carpet, new dry wall, new TV...