Maintain positive after-landing control.

Bottom line

When the seaplane is definitely on the water, close the throttle and maintain the touchdown attitude until the seaplane begins to come off the step. Reduce power as the seaplane settles into the water, and apply back pressure as it comes off the step to keep the float bows from digging into a wave face. If severe bounces occur, add power and lift off to search for a smoother landing spot.