You could finagle it in Google Calendar. It’s a bit of a hack, but it’ll work. You basically need to set up 3 events to cover the time frame since you’re limited to 6 notifications(5 early + 1 at time). Then set those to repeat indefinitely.

So you’d set the first for 11 am with notifications starting at 5 hours earlier. Next would be 5 pm. Final would be at 9 pm.

It’s a kludge, but it gets the job done.

No CLR! It will pit the aluminum. I wouldn’t bother with the water chamber, that’s just what aluminum looks like after the aluminum oxide builds up. 2 or 3 uses and it will look the same. If you need to descale, white vinegar or citric acid used sparingly should do the trick. Otherwise just take steel wool to it.

Looking at the pictures closer, it looks like the stem has some greenish tarnish in it, so a good scrub and maybe some vinegar or citric acid would be in order.