I finally jumped back into the pool. My son had swimming lessons today for 30 minutes, so I put my swimsuit on too and hopped in the lane pool for some lengths. I think I managed 28 lengths (700m) in my available time. I could have done a few more, but we were a few minutes late, and I talked to my lane-mate about her goggles.
Since my current 750m PR is 25:45, that's not too bad. I'll have to do a time trial next week.
120-25=95 minutes to go this week...