Pool update: after yesterday morning’s weird SWG behavior, I returned from work in the late afternoon to find everything ostensibly working normally. The temperature readout had corrected itself, and cell volts/amps looked good as well. The Free Chlorine this morning was identical to yesterday’s reading at ~4.5ppm. Not sure what the issue was. This morning, I pulled the cell out and inspected it, which is something I try to do every year around the end of July. There was very little scale, which indicates that the controller’s self-cleaning function is working correctly. The manifold inlet screen was clean, and the check valve looked good. Some of the cell plates (particularly the ones in the center) have worn down a little bit more, which tells me that the cell might finally be nearing the end of its life, but it seems to be good for now. Since I had it out, I went ahead and acid-washed it for good measure. Next spring, I’ll have to decide if I want to retire the cell and put my new one in service. I bought it in 2019, thinking I’d need it a lot sooner.

It was another pleasant morning, and I got up with my 5:30 alarm, so I left at 6:40 and ran for 6.8 miles. It was a great run, and I would have gone farther, but I had to be home at 8:00 to take delivery of a new winter pool cover. Weather permitting, I am going to try to take an 8 or 9-miler on Saturday morning.