Keel drain plug

[freespirit3]

Your a great detective.

It is a broom handle that rests at the other on the trailer board and yes stops the kink and allows water to drain freely without flattening the battery.

Very simple but works a treat

[gtflash]

I've seen some captive drains. They are chrome and when you open them, it stays in the boat. I bought one once to fit to my old scorpion but never got round to it. All boats take on water on land it seems so need a natural drain IMHO.

Always slightly concerned if you drill to allow water to drain aft. That could allow water to go forward also.