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I tried the drain pump in 2 locations and got slightly different results.
With the drain pump on the top, as in the picture, the bag fully empties, but the pump pushes up on the front seat cushion when the bag is full. The Tsunami pump does an excellent job of priming and pumping out every last bit, so the pump on the top was not an issue. In this location the drain setup will allow air to vent off.
With the drain on the bottom in the designated "Drain" of the bag, the bag does not fully empty. That drain location on the bag is not the low point of the front compartment. The low point of the compartment is directly under the pump in Picture 2. The drain port is on the aft, port side of the bag.
I ended up using the drain port on the bag for 2 reasons. One, I don't care if there are a few gallons of water left in the bag. And Two, With the pump on the bottom I can fill the bag really full and not pop up the seat cushions.
Venting has not been an issue, very little air gets into the system with the fill set-up as shown.
Mark, I am running this and about 200 lbs of lead bars tucked under the nose around the bag. I had the wedges over the tanks for a while, but it was too much rear weight with the extra weight of the 8.1. Same weight I have run for the last several years except now there are no sacs on the front seats!
With the drain pump on the top, as in the picture, the bag fully empties, but the pump pushes up on the front seat cushion when the bag is full. The Tsunami pump does an excellent job of priming and pumping out every last bit, so the pump on the top was not an issue. In this location the drain setup will allow air to vent off.
With the drain on the bottom in the designated "Drain" of the bag, the bag does not fully empty. That drain location on the bag is not the low point of the front compartment. The low point of the compartment is directly under the pump in Picture 2. The drain port is on the aft, port side of the bag.
I ended up using the drain port on the bag for 2 reasons. One, I don't care if there are a few gallons of water left in the bag. And Two, With the pump on the bottom I can fill the bag really full and not pop up the seat cushions.
Venting has not been an issue, very little air gets into the system with the fill set-up as shown.
Mark, I am running this and about 200 lbs of lead bars tucked under the nose around the bag. I had the wedges over the tanks for a while, but it was too much rear weight with the extra weight of the 8.1. Same weight I have run for the last several years except now there are no sacs on the front seats!