Nose bag

[mmandley]

Wanted to get some thoughts before i pull the trigger on my ballast upgrade.

I got a 650 nose bag. Its a bag that goes under the bow seats. It has 3 fill locations. One on each leg and on center top of bag.

My plan is this.. Use the vent hole on the ski locker bag to plumb a line to the top of the bow sac. Then add drain pumps to both legs of the nose bag so it will drain. Will the bag be able to vent like this at all? I don't want it full of air.

Another option im thinking is ski locker bag to a leg of the nose bag for filling. Then use the other leg for draining and the top fill point as a vent line.

My concern is will the bag drain all the way with only a drain pump on one leg?

[brain_rinse]

You'll need 2 drain pumps unless you want to pick up one of the legs to force the water to the other side by hand. I think you'll want a vent, especially if you're joining it to the ski locker bag.

Here is my setup:
Fill from the top side of one of the legs (dedicated pump.)
Drain pumps at the bottom of both legs, each with their own new thru-hull outlet.
Vent from the center/top, tied into one of the drain lines.

[mmandley]

You'll need 2 drain pumps unless you want to pick up one of the legs to force the water to the other side by hand. I think you'll want a vent, especially if you're joining it to the ski locker bag.

Here is my setup:
Fill from the top side of one of the legs (dedicated pump.)
Drain pumps at the bottom of both legs, each with their own new thru-hull outlet.
Vent from the center/top, tied into one of the drain lines.

See if i had 4 or 5 fill points i could do that. I don't have that on this bag. Its got 3 fill points.

1 in each leg and 1 center top of bag.

[brain_rinse]

Yeah that does make things interesting. So the only port on the top side is the one in the center, correct? The two leg ports are on the bottom side of the leg?

[mmandley]

Yup both legs have ports on the bottom and the last port is top center. Im thinking im going to have to vent the top hole and only be able to drain one leg. I know this is going to leave water in the bag though on the other leg.

If i got T800s on the legs i think air can pass threw them but water wont because its heavy and non compressible. Just not sure if this is a thought or a reality.

[2007 Outback V]

How about using a reversible pump on a new hull fitting?