[Putershark]

I ditched the ball and cage and went with the round flapper valve type. The ball and cage had 2 separate issues...

1. The pipe where the ball was trying to seal against had become out of round and as of such, would never seal very well... What may be your issue also.
2. The ball and cage type also make too much noise on the flats and were flushing out fish when popping in a out as the hull was bouncing

I cooked up the idea of the yellow foam golf balls back when we had out old 210 years ago, and I just started using them on the 190 and they work great with not a drop on the deck. They just pop right in and out preventing any kind of water that the flappers "may" let pass and trust me, there is some weight on back of my 190 for sure! Ha-Ha.. If I do manage to get caught in the rain and the deck starts to pond in the stern, I just pop the balls out (4 bucks or so for a bag of them at Wallmart) and hit the throttle and it drains right out, no big deal...

They also work great on the 210's (my first use of them) to prevent the flood of water into the mega hatch area