I am having an IGP installed in late august on a budget. I really want some automation and have been looking at the jandy IAqualink. I have been reading threads of people who upgraded their old aqualink system on their own with no problem. My question is can I install a system by myself and if so how. I have read alot of the instructions and it looks pretty straight forward but sometimes that scares me when it looks too easy for something that should be complicated. I am having the pool guy install the Jandy VS Pump and lights. Then I am installing the Jandy Heater, and Jandy Aquapure SWG. I will not have a spa. Any help on which system to buy would be helpful too. I was looking at the IQ904-PS but I don't know from there do I need another power center for the Aquapure etc. Thank you for anyones help.