We currently have Aqualink RS8 with a spa control pad that has stopped working and has been disconnected. Pool repair came out to replace side switch and cannot pull the wiring through the conduit. Trying to find where the wiring is hanging up is not an option as we have large rocks and concrete covering the area where the control wiring runs underneath the decking. Their suggestion was to go with the add-on wireless Aquapalm. I'm trying to find out how difficult it is to install and if we can do it ourselves. It would save me a couple of hundred of dollars. Thanks for the input.