tsunami pump question

[Wakemaker]

Big Wave... I did a setup with one pump and hose on the top for fill and another on the bottom for drain. Obviously yours reduces it to only one hose (Cant believe I never thought of this or seen it before!). Just wanted to ask.. So the fill pump has no problem overcoming the backpressure as the bag fills?

[jleger98]

My brother-in-law did this in his Supra. 4 pumps, two bags, two vent hoses. two double pole double throw switches. Only down side is that he mounted them sorta close to where your knee is when driving. So if you are not paying attention, you can drain the bags

He did the through-hull hole, then Td it. A scoop on the bottom fills fast when you are moving forward at idle. He gets about 1200 lbs in about 3 mins while drinikin a beer

[Matt Garcia]

Here are a few pics. The vale you see down in the boat in the second pic near the empty pump is for a second sac that I have not tried yet. You can see the 12V outlet I installed in the lower left of the 2nd pic. I have this set up on both rear sacs and an integrated bow sac. All 3 work well every time.

Hmm...that looks simple and effective. May need to do that for my additional ballast. How did you install the 12V outlet?