What is this valve/flapper at the rear of the hull? Water at my feet when sitting still

[uraceulose]

See attached..the little flapper seems to be worn and I’m wondering if this is why I have to jam a plastic bag down under my feet into that hole to get it to stop leaking?

 

[hivoltage98]

That’s your deck drain. Mine has a check valve on it to keep the water from coming back up the hole.

 

[Dr Honda]

That's the Scupper valve. As above... it's the drain for the footwell. It's supposed to close while at floating around... but after you are done swimming, and drag a bunch of water in the passenger compartment... it will open again while underway, and allow the water to drain out.

It's just a generic valve, and easy to replace. Any boat shop will have them... or check ebay/amazon for one.

https://www.amazon.com/dp/B0019M5JP...bae4-75e4425c0609&ie=UTF8&qid=1534764785&sr=2