"Shaun Eli" ...
Is the water clean or dirty?

Regardless, if your dishwasher is 30 years old you might consider
replacing it. Probably would save energy, too.

Sometimes clean and many times dirty, like rusty colored. It still does a
good job of cleaning the dishes. I would rather fix the problem at this
time than buy and go through the project of installing it [I do this stuff
myself], but I certainly do understand your energy point. Perhaps in the
future...
Tomes