* Air vents from engine compartment - 2 holes, each 4" in diameter (or so)
* Engine exhaust hose - 1 Hole, 2" in diameter (or so)
* Bilge hose - 1 Hole, 2" in diameter (or so)
I have a couple of questions (which I will list below), but first off, let me share a few photos of how how my lazarette locker currently looks as well as a description of my current plan how to make it all work:
![Image](http://farm5.static.flickr.com/4003/4618067392_e8d30e2666_b.jpg)
Caption: Notice that currently, the bulkhead is totally tabbed in, no way for water to move forward to the bilge (until I add a drain with a valve with a hose straight to the bilge)
![Image](http://farm5.static.flickr.com/4061/4618064654_58f3b797dc_b.jpg)
Caption: Here you can see the future engine compartment vent, as well as one of the future thru-hulls exhaust/bilge pump.
![Image](http://farm4.static.flickr.com/3415/4617463703_492d3c3fb2_b.jpg)
Caption: This image shows the area below my cockpit where the hoses may run. I beefed up the lazarette bulkhead and it's totally water-tight.
Original Hose Set-up and My Original Plan:
Originally, the hoses ran directly below the cockpit sole and through the lazarette bulkhead at it's lowest point in the locker, but this meant that they created gaping holes where any water could flow (uncontrolled) and splash down into the bilge. I had planned to build a kind of "box" that would still allow the hoses to come through the lazarette at this low point. The box would form a kind of "wall" preventing water from running through these 4, 2" - 4" diameter holes, but would take up a lot of lazarette space. (Note: You can see the grinding prep I did for this in the first image above to get an idea for the basic size of that box)
My Current Plan:
My current idea is to have all the exhaust go through the lazarette bulkhead as high as possible in order to keep any holes in the lazarette bulkhead as far above the waterline as possible. The idea is that the entire lazarette could be filled with water, and no water would flow uncontrolled into the bilge. If I build it high, the 4" and 2" holes will be far above the waterline, but this poses a couple of questions.
Questions:
1) What is the most extreme angle that the engine exhaust hose can bend? For my purposes, if I can bend the engine exhaust nearly 90 degrees to allow it to run along the cockpit bulkhead, then up to the underside of the deck, (inside the sea lockers) the hose will exit the sea lockers, into the lazarette a high enough angle to make me feel the lazarette is water-tight enough.
2) How should the vents for the engine air intake/outake be angled? This is a similar question to the exhaust question above, but since I'm moving air (instead of liquid exhaust like question #1) I am wondering how these hoses should be sloped from the engine compartment to the air vents in the lazarette area to create the perfect air flow.
Wrap up
Hopefully someone is following along at this point, I've been resisting posting the quesiton, because it's a little complicated since I'm searching for the most "water-tight" lockers as possible while also having nice clean hoses.
If anyone has images of the inside of their sea lockers/below the cockpit showing how all their hoses/air tubes run, feel free to share. It might trigger some ideas for me. Thank you in advance for all your valuable input (no matter how small!) Oh, and here are a couple more images of the area in question that may (or may not!) be helpful:
![Image](http://farm5.static.flickr.com/4012/4618074050_02bf1b9bd8_b.jpg)
Caption: Here you can see the cockpit bulkhead. You can just see below the bulkhead the future engine compartment area.
http://www.flickr.com/photos/50069396@N ... otostream/ (sorry, this one isn't embedding properly, because of it's orientation)
Caption: This image is probably the most confusing, but seen with the other images it might not be so much. Basically, this image is looking UP along the cockpit bulkhead, through the starboard sea locker and shows the area along the deck (inside the sea locker) where I could easily run tubing that would be totally out of the way of below the cockpit sole.