Rule Based Control.

Hi, everyone.

I´m trying create a rule to open and closed a pump based on a different water levels in a tank.
When I running the analys, the error appear. " undefined node in following line of Rule 17".
I researched the problem, the tool [b](Rule-based controls)[/b] type id in capital letters, and EPANET not accept it.

How can I change this???. because I can not work with this tool because this problem.

best regards.

You may want to try posting a sceenshot of what you typed into the rule dialog...maybe help make it more clear what the issue is.