Teams: masters workout and adult swim lessons

I am a member of a long established masters team, although we have been relatively quiet until the past 18 months. Problem: We are getting more and more adults who cannot swim. They want to compete in triathlons and they can barely swim 25 yards,and we are currently set up is meters. This is drawing our coaches attention and they seem to have found a cheaper way to get an adult swim lesson. Stroke development and general help are not an issue; this is almost complete lack of swimming skills. Question: How does your club/team advertise swimming and divide or set a limit on the skills a swimmer needs to have to complete a masters workout? Where is this knowledge obtained? What is your teams limit? Thanks...