Intrepid175 wrote:
Roadrunner wrote:
P.S. As a last ditch effort he MAY have been able to invert the boat, open a hatch and use his bucket to scoop air into the hull. That would displace water about as fast as bailing. The air would rise, forcing the water out. It would be a slow process -- the question would be whether he could remove enough water before hypothermia gets him. Under the circumstances it would be his only option (that I can come up with). Who would think of it though under the stress of the event?
Anyway, I know you emphasized "may" be able to invert the boat and use a bucket to scoop air into the hull, but have you actually tried to submerge a bucket full of air while swimming free?
No. Keep in mind that coming up with a way not to drown in the ocean, one is willing to try anything with whatever is available no matter what the odds are. On the other hand, questions like this are great because it forces one to get out of the "armchair" and actually try them.
I grabbed a Hobie Gear Bucket and a 5 gal pail (surrogate for for a boat for now) to test the idea. This could also be a Plano box, worm can water bottle or any container.
The Hobie Gear Bucket has a 1/2 gallon volume:


Delivery of air to submerged "kayak"

Release of air:

Voila!:

A 5 gallon pail was effectively filled with air in about 45 seconds. Lets say a minute. So that is about 50 gallon if 5 minutes. Lets guess you need to displace about 150 gal. of water -- that's about a 15 minute job. When done, one would be sure to secure the hatch before flipping the boat right side up. You don't need to get all the water out, just enough to stablize the boat.
Lets go back to the story again. The Hobie gear bucket matches the description of a "white bucket". The kid has been in the water for 2 hours so we know the water wasn't cold. Hypothermia wasn't a factor for at least an hour. In salt water you're more bouyant -- in any event, it should be possible to hold the boat in position inverted by the open hatch lid and support oneself in the water while delivering the air with the other hand.
When you go to your friend's pool for re-entry practice, that would be a good time to see how this works out in a real kayak! Please post the result!
BTW, the Hobie Gear Bucket makes a great expedient paddle as well as hailing device!
Atango wrote:
Recently I installed a manual Whale diaphram bilge pump and a Whale pump strainer in my TI. The project was just completed and today I conducted a sea trial of the finished project.
I set up the boat as usual, minus a few typically stowed items and then added 50 gallons of sea water (approx. 428 pounds). At this point, with me in the aft cockpit, the stern of the boat was awash. Then I pumped out the water at a comfortable pace. It took 7 minutes to get the water out of the boat. That's a rate of approximately 7 gallons per minute.
Very nice job. I also appreciate that you went out and tested it with tangible results! Here's the link:
viewtopic.php?f=69&t=47866&p=211720A couple of questions. I gather you operate the pump from the seat by bearing down on the handle. Could you operate it from the water where you would have less downward force available? Remember also, a bilge pump removes water but need a source of air to replace it. In this particular case where the boat is completely awash, it would appear that only water could replace the water removed -- it would be too late for any bilge pump. In other situations, however, it looks like a great option. Thanks for sharing it!
