we've had three days of 90+ heat and my solar has been on for 8 hrs/day from 10am - 6pm. The water temp has not gone up much (started high 66 or so and now 73).
I do notice that the filter pressure is on the high side 28+ so I'm wondering if this would make the water not turnover as much causing the water temp to slowly rise.
any other ideas/suggestions?
Thanks in advance,