Swim Tether Workouts

Good Afternoon- I struggle to have access to a pool. I can get to an oympic size pool once a week but that’s it. It makes it difficult to develop my swim. It’s a public pool and very busy. I never know if I’ll get a 50m lane or a 25 yard lane until I get there.

I went on Friday and tried doing a workout and it had imported to my Garmin and wouldn’t allow me to change the pool size in the workout to anything but a 50 meter pool. It was frustrating so I just tried to swim. Like many amateur triathletes my swim is my worst discipline.

Thinking of that I have a swim tether I can train with. Is there any good way to log those swims?