This project came about with the realization that my 35-foot Columbia didn’t have any automatic bilge pumps. Not one. Given that the project will have to start from scratch, I researched possible solutions and some of the problems they offered.
Several months ago, I talked about filling in holes in Daydream. I patched two thru-hull openings, one for the overboard head discharge and one for a redundant transducer thru-hull.
Now that the entire boat, inside and out, has been sanded and the first coats of paint are being applied, it’s time for me to actually start making some holes in the boat, or at least remaking some.
A Columbia 26 has two deck drains and two cockpit drains, one of each on each side. Both drains on one side of the boat meet at a tee at the top of a seacock which in turn is fastened to a thru-hull. The old drains were pitted and dull. We decided to remove them temporarily to make painting the deck and cockpit easier.
Ask any ten boaters what they think of their onboard
freshwater quality and at least half of them will admit to not using it for
drinking purposes. Yet keeping onboard water supplies good tasting and
drinkable isn’t rocket science (although some components may be traced to the
Ask any ten boaters what they think of their onboard freshwater quality and at least half of them will admit to not using it for drinking purposes. Yet keeping onboard water supplies good tasting and drinkable isn’t rocket science (although some components may be traced to the Space Program).
How well I remember the first (and only) day I overfilled
the holding tank. The good news was that nobody was standing beside the boat
when the noxious fluid came shooting out of the vent.After cleaning and deodorizing the dock, I
knew I had to prevent such an occurrence from ever happening again.
This project came about because of a glaring item on the
surveyor’s report: “Vessel has only one manual bilge pump installed, no backup
pumps, manual or electric, are present”. Just to put some number with the
problem, considerer this: Hollander and Mertes, in their book “The Yachtsman’s
Emergency Handbook” quotes the following approximate flow rates:
Three-finger sized hole near the waterline: 4762 gal./hr.
Reader TJH wondered if it would be better to crisscross the vent lines to keep water from entering the tank in the event of a knockdown. A more likely event would be sewage draining overboard. Crisscrossing the lines as shown should prevent either scenario. Anyone see a flaw in this arrangement?
Ever stop to think how dependent your boat is on a little rubber impeller? Or how many of them you have aboard? Depending on the size of your boat, it could be from one to as many as seven or more. They reside in your outdrive, electric head, pressure water system, washdown pump and oil change system, for example. Failure of any of them could result in consequences that range from a smelly mess to a possible sinking or expensive damage to your engine and drive train.
One of the comments I often hear at the boatyard is, “This seacock is too expensive, I can get the same thing at (a favorite home improvement store) much cheaper.” Well, yes, you can find something there that looks a lot like a seacock, or more correctly a ball valve, but it isn’t the same.
Introduction: Call them flexible tanks or bladder tanks; they may well be the answer to your water storage problem. These tanks can be easily retrofitted to almost any boat. A few possible reasons for doing so are to:
• Replace leaking metal or plastic tanks
• Replace integral (built-in tanks)
• Add additional water capacity
• Provide ballast that can also be used for drinking
These tanks are available in many different sizes and several different configurations. In this article, I’ll cover the general design of the tanks, proper location, correct installation techniques and some first hand experiences.
When it came time for me to replace the old seacocks on one
of my project boats, I thought I’d do it up right, replacing the thru-hulls as
well as the seacocks. Based on my experience with another, older, boat, I was prepared
to have to cut the thru-hulls out. I didn’t think I would have any problems getting
new, bronze, thru-hull like the ones currently installed on the boat. After
all, they haven’t changed the thread sizes lately have they? ¾”, 1”, 1-1/4” and
1-1/2” pipe threads are still the standards.