Have a bit of a cautionary tale from getting my new equipment running.
As part of the remodel I refurbished the (very) old sand filter. It got new paint, new laterals, new o-rings, new glycerin filled gauge, fresh sand, and I replaced the old slide valve with a nice multiport valve. Got the new pump up and running (Intelliflo) and was too excited to get things going that I didn't go through all of the settings menus prior to starting it. Backwashed and rinsed to get the crud off of the new sand. Ran the pump on recirculate and played with the valves and pump speeds to figure out what speeds and valve settings worked best for the sheer descent, for skimming, and for basic filtering. Turned the pump off, set valve to filter, and turned the pump back on. Default settings on the pump has max speed at 3450 RPM and priming mode enabled. This meant that when I turned the pump back on, it kicked into full speed for a few seconds, at which point I heard a pop, and then saw water and sand flowing out of the filter base.

Yep, very old sun worn fiberglass filter plus brief excessively high pressure equals a cracked filter housing.
Was able to get a replacement filter, and get it installed last night. Prior to starting the pump back up I went through all of the settings menus this time. My pump intake is a few inches below the water level, so there's never a need for priming mode to be enabled. And with my filter and 1 1/2" return line plumbing there's never a reason for my pump to run at full speed, so I set the max speed at 2000 rpm. The old filter was pretty old and sun damaged, so replacing it was likely inevitable, but I still learned a valuable lesson.
On the bright side, the water is mostly balanced and everything is now running smoothly. Let the kids jump in for an inaugural swim before bedtime last night.
