We have found the BVISUPCO team to be very helpful over the years. Have you called them to see if they have a pump for you to take out on your charter? In the past, they have given us a few things in situations like this with either no charge or a small charge.

Also, we typically get the lazy buns - when you are floating behind the boat, you are pretty deep overall with the waterline somewhere around your upper chest. However, they’re still workable, and they also work well for standing in waste-deep water and using them as a floating table for your drinks. Overall, we would recommend them.