I need help. I have a 30' Iroquois Catamaran that is taking on water. It's a 75 MKII. Previous owner had taken the berth out of the port hull so I have full access with the board I used to hold the bed removed. Slip is really shallow and with the lack of rain the boat was sitting on the bottom. Water is up a little now. Possibility that the boat next to mine pushed mine to get out of his slip, maybe broke the skeg off? No visible holes or anything on the outside that I can see. Aft lockers have what I believe are the old water built in water tanks. I don't know if there are any holes that run from the old tanks into the boat that haven't been sealed. Water is at the same level as the river. Bows are still floating stern is sitting on the bottom. Water is just over where the bunk would be in the back and right at the level of the lowest step in the front of the berth. Pumps were a bilge pump and a 1650 GPH sump pump in the rear berth and the bilge pump in the head compartment. I was not able to get any real difference in the aft berth water level. When I moved the sump pump to the head compartment it cleared out within minutes but then back up to where it was within maybe 10 minutes. Water was coming from the aft berth. Closed the head through hull valve while the water was down just in case. Didn't see any water coming in from any hoses or anything in the head compartment.
Part of the water coming in could be things that were not meant to be under the water now being under the water but I don't know of any real spots in that area that could be adding to it. Thinking of trying to get a waterbed mattress or 2 and trying to use them to either lift from below or stuff them in the hull and displace some of the water while I am pumping out. Any thoughts on raising her and any thoughts on what could possibly be the breach point would be appreciated. Once she is raised I need to determine how to patch her enough to either get the breach out of the water to repair or get her to a marina with a boat lift. I don't understand how this could happen on this boat, the hulls are 1" thick glass reinforced plywood. I have knocked over pilings with it and there wasn't even a scratch on her. Sitting in almost no water and nothing really there to harm her and she takes on water. It doesn't make sense. Vernon Densler Logistics Engineer Northrop Grumman AS (321)-951-5426
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