Haverstraw – 0 nautical miles and 0 kilometers walked
For a boat, it’s important to have the water on the outside. Outside water provides buoyancy, a means through which to move to place to place, and a place to swim and fish. But outside water is also required for a few key boat systems - the trick is to draw outside water into the boat in a controlled and predictable fashion. If you get too much outside water inside the boat, then outside water becomes inside water and inside water becomes outside water and you have just sunk.
Outside water is drawn into the boat via thru hulls, which are open holes below the waterline protected by opening/closing valves called seacocks, which are installed with strong adhesive to make them waterproof. This outside water is used for engine cooling, air conditioner/heating units, toilet flushing, and sometimes to provide water to the galley sink. Fresh water for drinking, cooking, and showers is also stored in onboard tanks, and they are filled by removing a screw-on cap from one or multiple deck fittings and pumping in the water, usually from a water source at a dock, or from large portable containers. Pumps then move this water from the onboard tanks to all the taps, showers, ice makers, and anywhere else where water is required.
Where can things go wrong? Leaks in the thru hulls, leaks in the deck fittings, leaks in the taps or drains, leaks in the hoses that move the water throughout the inside systems, or leaks in the systems themselves.
Outside water can also get into the boat in a less controlled manner. Rainwater or splashing ocean water can get in through leaky windows, leaky hatches, at the mast step or through the mast, or cracks or holes in the topsides of the boat. There are other places water can enter – through the shaft seal, which is where the shaft from the engine exits the boat, and protected by either a dripless shaft seal or a traditional stuffing box that drips in a predictable way to provide lubrication. Another way is through the rudder, as the place where the rudder connects to the steering system is often below the waterline. Yet another way is through the keel bolts, which is where the sailboat’s heavy keel is bolted through the fibreglass. There are a couple of less obvious ones too. Air conditioners create condensation, as do windows when there is a temperature differential between the inside and outside of the boat. There are also refrigerators and iceboxes that have drains for collected water and fluids.
Fortunately, boats are designed to expel any outside water that gets inside. The controlled systems usually have their own pumps and thru hulls. For example, the engine draws in water then expels it through a wet exhaust hose and hull fitting, usually above the waterline. Boat heads and galleys use pumps or gravity to remove grey water (from showers and sinks) and toilet pumps move black water into an internal holding tank, which is later pumped out at a marina through a deck fitting. The air conditioner/heating unit also has a pump which discharges the water via a thru hull.
What’s left is the bilge pump, which is the final defense against outside water when inside systems fail. The bilge pump (or pumps, as it’s better to have two or more for redundancy) lies at the bottom-most part of the boat and the hull is designed such that any leaking water should eventually find its way there, usually through a series of drain holes. Most boats have a series of floor compartments which channel the water into the main bilge so it can be pumped out.
Which brings me to SeaLight. She’s generally been a pretty dry boat, but this year she started collecting water in the bilge compartments. It began slow at first then got slightly worse as the summer progressed, but not to the point of panic. Every week we’d come down to the boat and I’d have to remove a salad bowl full of water, and this water collected in a place where it didn’t quite reach the drain hole to make it into the centre compartment where the bilge pump is. It was an annoyance, but we had so many other projects to do to prepare the boat for this trip that we weren’t able to focus on that problem.
For the past two weeks, the problem has been getting worse. More water seemed to be collecting when we were underway with the engine, but not all the time. We also discovered there is a large cavity below the visible bilge compartments that I could draw at least a gallon of water out by using a vacuum on the drain holes. We checked all the thru hulls and looked for leaks anywhere we could access the hull from inside the boat, but found no sign of leaks. Also, up until this point the boat was in fresh water so it was impossible to tell if the water was coming from our fresh water system, rainwater, or lake/river water. We had our buddy boat friends come over and look at it and provide advice. Ben suggested that instead of drinking rum every evening for cocktail hour we should be removing a salad bowl of water and doing bilge shots, to detect changes in salinity, not to mention delicate bouquets of diesel and mold. Jeff figured we should take a grinder and shave off the fibreglass from the drain holes to see what the hell was going on down there. If there was indeed a leak coming from the outside, then we were going to have to haul the boat and have it repaired as incessant leaking was going to do some major damage to the integrity of the fibreglass. Two excellent suggestions, but I wasn’t quite ready to go that far.
I had been taste testing the river water and today I could finally detect salinity, which was going to prove once and for all if the water was coming in from the outside – now it was time for bilge shots. The other factor was that we had some pretty major repairs done to the hull this past spring which involved cutting out fibreglass, re-glassing, and re-bedding the entire keel, which was required due to an unplanned encounter last summer between our keel and a underwater Thousand Islands boulder. The guy that fixed it – Peter Jones from Niagara-on-the-Lake – is a real pro and I could just not fathom that he could have done anything other than a perfect repair.
The other day I thought we had cracked the problem as we discovered a plugged anti-siphon valve which was causing engine cooling water to be ejected from a hose into the bilge. Well, after extensive testing over days, turns out that was not the entire problem, as we were still getting water. So today we ripped open every floorboard, sucked every single drain hole and compartment dry and went through our systems one by one, testing, and monitoring for leaks. And we found two. The accumulator tank under the main galley sink had a slow but steady leak, so I removed it, and with the help of Ben we took it apart and discovered the bladder was ripped. So I bypassed the accumulator, plumbed the line directly into the pump, which stopped the leak. We hadn’t noticed this before because we had so many cleaning supplies and brushes and other junk rammed in below the sink. Secondly, we discovered the main shower room has a gap at the fitting where sink and shower water drips down, slips into a drain hole, and was eventually finding its way into the bilge. But you could only see it happening when the shower was on and you had your head jammed into the small cabinet under the sink.
By the end of the day, we were able to confirm there is no more water collecting in the bilge. Even better, Ana discovered a marine store just a mile away from our location and ordered a new accumulator tank, plus a few other bits and pieces we need.