Thanks for the reply Paul. I guess there are not a lot of 2I8 owners out there with holding tank
issues. I found a tank at Ronco that will fit in the starboard settee locker. I made a cardboard mock-up of it to be sure it fit. It is only 10 gallons but that should be sufficient. The price is about half of the flexible tank. There is no writing on the old tank but I am sure it is the original tank. It has some of the stock brown paint
on it that Islander seemed to have used in a lot of their boats. The tank should arrive in a couple of weeks. No more having to massage the bladder when pumping out. That will be nice.