well being a rower myself, rowers need balance to keep their boat steady, so it doesnt tip. this is obtained by squaring your oars, sitting up straight and resting the handles one on top of eachother.
You will need a water rower if you are wanting to practice for outdoor rowing, but in an indoor setting. The other uses include just for general fitness, if you prefer the real rowing experience.
Rower
Yu Hua - rower - was born in 1981.
Dick Lyon - rower - was born in 1939.
John Pritchard - rower - was born in 1957.
Joseph McLoughlin - rower - was born in 1878.
Joseph McLoughlin - rower - died in 1962.
Matthew Wells - rower - was born in 1979.
Bruce Logan - rower - died in 1965.
Bruce Logan - rower - was born in 1886.
Jovan Popović - rower - was born in 1987.
Lars Christensen - rower - was born in 1965.