Our pool comes with a Polaris Caretaker infloor system and the manual says that the pressure should be b/n 12-20 PSI. The normal PSI of the filter (written on the filter with a pen by whoever installed it) should be 12-14 (currently @ a little above 10), and when I close the return to the spa it goes up to about 18. However on the Caretaker PSI gauge that translates to 9-10 PSI, which is not sufficient to turn the heads. I've been on the phone with Polaris for the most part all last summer without much help. We replaced everything on the Caretaker following their advice, we even got their local dealer/service come by and they were no help whatsoever. So here is the question, how does one go about figuring the correct pressure for the pool system, and is there any way to actually raise the pressure safely without damaging the equipment?
Thanks in advance for any insights.