How To Know When To Change Your Boat's Water Hoses
Oct. 28, 2024
How To Know When To Change Your Boat's Water Hoses
A Sticky Situation
Oddly enough, not all onboard drinking-water issueslike poor taste, bad smell, or weird colorarise from the existence of algae and other contaminants in your onboard water tanks. Theres yet another, often overlooked, culprit.
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Lets say, for example, that your boat is, oh, about 10 years old, which means, of course, that the hoses that convey drinking water from her deck fittings to her water tanks, and from her water tanks elsewhere, are probably 10 years old or thereabouts as well. A big deal?
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Well, maybe not. But then again, given the time span were talkin here, theres a very good chance that those 10-year-old hoses of yours, which are probably made of PVC (Polyvinyl Chloride) reinforced with either a spiraled-steel inlay or some polyester braid, are either deteriorated or at least starting to deteriorate due to age. Indeed, most reputable manufacturers of marine hoses for potable-water transfer will tell you to replace their products at just about the 10-year mark.
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Which is sound advice, by the way. Deteriorated PVC hoses can easily affect the taste of your drinking water as well as its smell and appearance. And whats more, if said hoses are in really, really bad shape, they may also adversely affect the state of your health.
How do you spot a bad potable-water hose? The most obvious tell is some degree of stickiness on the exteriorfaint stickiness being an indicator of modest deterioration, intense stickiness an indicator of serious deterioration. In either case, whats going on is grimthe flexibility-inducing plasticizers that the manufacturer blended into the PVC way back when are breaking down or have broken down and are coming to the surface where they can be washed into your drinking water every time you fill your water tanks or turn on a faucet.
The fix? Next time youre touring your engine room or any other onboard space where you can access your potable-water hoses, reach out and touch as many as possiblereally grab ahold. Even a faint stickiness means you should oust the old and bring in the new. And dont despairpotable-water-type hose is relatively inexpensive, at least when stacked up against fuel and other types of high-pressure hose. So, considering the benefits that will accrue from a necessary replacement, springing for the new stuff is not a bad deal at all.
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Capt. Bill Pike is deputy editor of our sister publication Power & Motoryacht magazine.
Exhaust hose lifespan?
No, there isn't an accepted average lifespan for the hose as in a good installation it will go on indefinitely, in a poor one it will fail, It wil also dpend on how much cooling you get from the water injection and the salinity or purity of the water. The proper, purpose built hose is quite pricey until you consider that it will last for decades, but if you're revamping that area or fitting a new engine then it's a good time to replace it. Most fittings will be hard to access and you ca expect some skinned knuckles and a fair bit of cursing as you try to force the new hose through a small opening... At the end it gives a smug feeling that only a boat owner with a new exhaust hose could possibly understand.
Rob.
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