–Satisfactorily polished the Datejust case. Clean and spiffy now.
–Took a swim. Okay, but a tiny bit too warm to be refreshing. Got a solid data point on the solar: turning down the target temp 1 degree lower than the current temp causes the solar valve to close immediately. Also, bubbles cease and (some) pump speed goes down, as shown by the lower pressure on the gauge. Lots more tuning to do.
–Learned that Willie the LSB mail carrier is retiring. We’ll be going to his party on August 1.