Hi All

I installed a pipe from my sprinkler system to add water to the pool. My problem is I have to turn on the main sprinkler valve by hand to get water to the pool because I don't have any zones left on the present 10 zone controller. I'm thinking of just adding a second controller by the pool to turn on the main valve, but wondered it the controllers could damage each other when one is turned on.

Thanks for any help and ideas.