I need to reach back to the pros here at TFP. You always save my butt, and a few dollars.
I have a Jandy DE filter that typically runs at 18-20psi. Earlier today after testing chemicals and sweeping the pool out, pressure was about 21-22psi. Triggered a thought that I will have to backwash soon. My son had a few friends over and they played in the pool and attached spillover hot tub. The were using the blower for bubbles as well. When they departed I went to clean the area. I noticed no activity from the jets in the pool but the jets in the hot tub were working fine. I turned the blower off. Same indication. Noticed the DE pressure at 30psi WHAT???. To address the jets, I toggled my panel between pool mode and spa mode (Jandy Aquilink and valve actuators), still no activity from the jest in the pool. Decided to backwash to lower the pressure. No help, still at 30psi. Grilled the kids asking if they fooled with anything, no mas. Cycled the panel and modes still no joy.
Any thoughts on this? I plan to split the filter and clean the grids thoroughly in the AM. Hope this fixes the pressure? Would this also affect the pool jets but leave the spa jets fine? Scratching my head on this one. Any help on this one would be awesome.