Swim training in an Endless Pool is like swimming in open water -- no turns, no shared lanes, no stopping. By eliminating turns you get a better understanding of your true open water endurance.
The water flow from the swim unit is wider than your body and deeper than your stroke creating a smooth, comfortable, river-like current to swim against. With your own convenient pool, train as long as you want, on your schedule. What's more, by training in an Endless Pool, you'll have the resources to do an entire triathlon in your neighborhood -- even practice transitions at home!
More information here: http://www.endlesspools.com/swim-trai...