One Way Motorwell Drain Tubes

[Capt Terry]

As I already have the Hermco-built splashwell and am raising my transom 2", I rarely expect to get water over the transom in my SC lake usage. In the past I operated with the drain plug removed which was a problem at rest with heavier guests in the jump seats. With the transom height increase I expect to keep the plug in all the time.

Does anyone know of any reliable one way drain tubes so any over the transom water runs out but none comes it? Got pics or part numbers? Must be something that does not plug easily by small debris, etc. Thx

[Vezo, Part II]

Hey Capt., we ran two pretty cool rubber “Duckbills” on the Jersey Skiff. Interesting boat racing theory. Anytime you could spray your prop wash over the bow of your trailing opponent you flood them with additional weight that he could not purge. Seriously slowed the shit out of him, actually. These duckbills go in from outside the transom, start out circular, but in same diameter, come to a closed opening aft, making it a one way valve. Pretty cool and may be exactly what you’re looking for. I’ll stop by my brothers and see if he can put his hands on them. Been ten years.?.

Vezo, Part II

[Capt Terry]

Thx Michael, now that you mention it I saw duckbills Years agowhere theywere being used as a bilge drain plug. Then heard about boats sinking after they got old or fatigued. In a motorwell application that won’t happen. But am guessing they worked as drain plugs due to the venturi effect running through the water, which wouldn’t br the case for a motorwell drain.

[Vezo, Part II]

I’m not sure they actually touched the water because they were resting on the cav plate that never really came in contact with the water surface. I don’t believe it was a Venturi effect as much as water pressure wanting to escape. Haven’t gotten to my brothers shop today.

Vezo

[Capt Terry]

Thx Michael. Online I found a versaplug made by PWC which has a ball check valve made for SeaDoos. Will look into it more. Sounds like a natural for my splashwell drain when the heavies are sitting in the stern jump seats. Hsve to check dimensions to make sure it doesn't stick too far aft.

[Vezo, Part II]

Cool. Best of Luck! Report back.

Michael.

[Capt Terry]

Originally Posted by Capt Terry

Thx Michael. Online I found a versaplug made by PWC which has a ball check valve made for SeaDoos. Will look into it more. Sounds like a natural for my splashwell drain when the heavies are sitting in the stern jump seats. Hsve to check dimensions to make sure it doesn't stick too far aft.

This is a Versiplug-R which looks the most compatible. I have requested dimensions like how far does it stick aft from the transom. Vezo could you or a 20' owner with an ETEC 150 determine the clearance between the back of the transom at the drain hole to the all the way trimmed in engine? Maybe measure through the drain hole or use modeling clay. My engine is on a stand right now. Much thanks

[Vezo, Part II]

That’s a tough one, as I am in SC. Would my ‘79 MA be similar? As my Seafari is currently stored, I believe trailer at level, and my Etec vertical. Check it out. My neighbor has ability to true engine with battery power to T/T if not “square enough to set a beer on it”, ideal trim. Haha

Vezo, Part II

[FLexpat]

https://thmarinesupplies.com/product...x-ball-scupper

[Vezo, Part II]

Ah, the ping-pong ball scupper! Works well on Vezo, Part I’s ‘88 18. 2010? Suzuki DF140. 25” transom.

Michael.