Originally Posted by Irrigation Contractor
Everyone knows when it comes to service techs, the ability to troubleshoot takes a certain individual. Installers are completely different, you have to be able to take a step back when approaching a repair.
Yup, out of my three leads, I'd only send the big, slow, bohunk out. The other two did fine on installs, but had not the patience or wherewithal to troubleshoot, especially with the 521.