Why Roll the Dice with Water Safety?

There are gamblers out there who will bet on almost anything, cards, horses, dogs, you name it. But so far, we’ve never heard of a bookmaker giving odds on the safety of the water supply in a commercial domestic hot water system. Some property managers, on the other hand, either deliberately or inadvertently, are all in on that bet. They are betting that they can save a little money by not installing a 3-way domestic tempering valve, and still deliver hot water at the right temperature that is bacteria-free. They seem to gladly take that bet if it saves them some money in the short term. Unfortunately, if the bet goes bad, they stand to lose a lot more than if they had invested in a 3-way domestic tempering valve. Here is the bet that some property managers take. Most local and national plumbing codes require that the maximum temperature delivered to the hot water tap cannot exceed 120° F. This safety rule is in place because a water temperature of 125°F can scald an adult ...