I'm installing a ballast system in a boat for a friend of mine and I need info on the Fly High triangle front sac. His boat is here in Cali. with me but the front triangl sac is in Floirda with him. I needed to know the locations of the fill/drain ports on that sac. If I remember right there is 2 on the top( one in the front and one in the rear) and also one in the rear back side of the sac. I'm running all the lines for him so he just has to plug the sac in when the boat gets to him. I've looked for pics online but can't find any forsure pics.