First of all I'll say "hello there!" I recently started my own business in Calgary and this seems like a good place to get some advice.
Problem: Two 40 gallon hot water tanks connected in series (gas) 6 years old. Even though the homeowner turned them up one 'click' away from Max, the water doesn't seem to be as hot as it should be. I turned on some taps and the hot water also ran out faster than it should have for two tanks.
While the taps were running the primary tank (the one the water enters first) lit, followed by the second tank some time later.
I'm thinking that it could be the dip tube in the primary tank...or...the temperature sensor on the gas valve on the primary. Any ideas?
Thanks in advance