Finished: two more wet bags, aka pail liners, for the nappy bin. Now we have a grand total of 4! There’s going to be a lot more cloth nappy washing in August when #2 arrives.
I just tore nylon in a big rectnagle, sewed French seams on the side and folded over the top by eyeballing it to make an elastic casing. A snug casing is key to keeping the bag in place in the bin. For the first two I measured the diameter of the inner plastic bin, but for these I roughly knew how big they needed to be. I wash the liners with clothes at 40C, although technically 30C is better, but we hardly ever have anything to wash for that temperature.