H 33 holding tank replacement with stock tank
Last winter I spent a memorable couple of days inside the cockpit locker of my 79 H33 exorcizing all claustrophobic tendencies, practicing my contortionist act, and incidentally installing a new holding tank with attendant new hoses and valves. A 13 gallon polyethylene tank, (24" L X10"W X14" H, Todd, E &B Marine Model 486738, about $70) fits like a glove into the space just below and aft the starboard jib sheet winch mount. I mounted the tank as high as possible and supported the lower outside corner of the tank with a piece of properly chamfered 2x4 material fastened to the inside of the hull with 5200 adhesive sealant. In installing it, the tank just slides on top of the 2x4 until the top edges wedge between the hull and the vertical wall of the T section of the cockpit. I put a removable stop on the 2x4 at the forward end of the tank to keep the tank from moving forward but still allow future removal. At this location, the existing pumpout fitting in the starboard deck and the original vent are straightforward routings. Routing from the head and to the through hull are also clean. All the hoses are near or directly against the hull, thus impinging very little on the usable cockpit locker space. When you open the cockpit locker, you really don't notice the tank. You can still get to the steering gear and rudder post area as easily (or with as much difficulty) as before . The bottom of the tank is several feet above the location of the through hull so that where legal, the tank can be emptied by gravity and very quickly indeed without the need of the old diaphragm pump installed originally. I could not be happier with the result. The boat smells so much better! Even my wife no longer complains.