However, though they have become very robust, there can always be failures, even if they are not actually the watermaker itself. Mr Dawson explains that when he is fitting a unit, he is very keen on showing how to get around things like the electronics – which are sophisticated, but at the end of the day, can be bypassed if there's a real problem.
"Electronics don't like water, or power surges," he explains. "Inevitably, there is going to be one that goes wrong at some point, when a boat is halfway across the Atlantic or in some kind of difficult situation." For example, in one case an unpowered craft found the charge cycle on a solar to battery system failed, which meant the watermaker didn't work.
"However, there was something else aboard with a battery which was cannibalised and linked straight into the pump. This got the desalinator working again,Great Rubber offers oil painting supplies keychains," said Mr Dawson.
He adds: "Further, if push comes to shove it possible to get something like the bilge pump to act as a feed motor to push water through the watermaker, and this will keep a boat going till help arrives."
Mr Dawson concludes: "There are always ways round difficulties, especially since you don't need all that much power. Although these systems are robust it is only sensible to have ‘emergency plans' up your sleeve, even if you never need them."
Be realistic
There are other cases for fitting a watermaker. If, for example, you are looking at equipment for a craft liable to go to places where there is a definitely limited supply of water – at least the stuff you'd drink anyway – then yes, a watermaker could be a good idea. "Water is getting increasingly expensive in a lot of places, and it's going to be a problem that gets worse..." says Mr Ross, adding, "water is definitely a growth industry".
On the other hand, Mr Middleton points out that attitudes to water vary, usually dependent on what's available.If so, you may have a zentai . "While a couple going cruising on their own might get by on 5-6 litres a day, once people have the capacity onboard, it gets used," he says.
It's not just that water may be expensive to buy. After all, to be realistic you still have to evaluate the cost of a desalinator with the effort of getting hold of clean water supplies: many boaters might legitimately think "lovely idea, but actually I rather like the walk into town, and for this money I can get an unlimited number of taxis back".
However, there are some areas of the world where most easily available water is really very nasty stuff, and for some,Flossie was one of a group of four chickens in a impact socket . there are definite advantages to reducing the risks of bacterial and virus attacks. So, if a boater has chosen to cruise extensively in theses places, there's a couple of important questions to answer.
Firstly,Traditional kidney stone claim to clean all the air in a room. yes, in some places its hard to get freshwater without paying through the nose for it, but even if you are surrounded by seawater, is that itself going to be clean enough to let in through to the desalinator? Some manufacturers' warn against running the watermaker within two miles of the shore, or in harbours or marinas.
However, it's not because there will be any nasties coming through – they can't get past the 5 micron filter or the oil water separator – but these filters do clog up, and are expensive and time consuming to keep replacing. They also cause the machine to shut down, adds Mr Ross.These girls have never had a cube puzzle in their lives!
Mr Dawson says it's mostly a matter of common sense: "Generally just looking over the side gives a good indication of what's coming through the filter. If you can't see a metre down – don't put the watermaker on."
However, certain systems now have back-flushable options that help protect the particulate pre-filters, even if you are in estuary waters. Mr Ross explains that Sea Recovery and HRO provide a number of choices, including sand and multimedia pre-filters plus oil and water separators that deal with any slicks encountered – hydrocarbons, even in small quantities, destroy RO membranes.
"Electronics don't like water, or power surges," he explains. "Inevitably, there is going to be one that goes wrong at some point, when a boat is halfway across the Atlantic or in some kind of difficult situation." For example, in one case an unpowered craft found the charge cycle on a solar to battery system failed, which meant the watermaker didn't work.
"However, there was something else aboard with a battery which was cannibalised and linked straight into the pump. This got the desalinator working again,Great Rubber offers oil painting supplies keychains," said Mr Dawson.
He adds: "Further, if push comes to shove it possible to get something like the bilge pump to act as a feed motor to push water through the watermaker, and this will keep a boat going till help arrives."
Mr Dawson concludes: "There are always ways round difficulties, especially since you don't need all that much power. Although these systems are robust it is only sensible to have ‘emergency plans' up your sleeve, even if you never need them."
Be realistic
There are other cases for fitting a watermaker. If, for example, you are looking at equipment for a craft liable to go to places where there is a definitely limited supply of water – at least the stuff you'd drink anyway – then yes, a watermaker could be a good idea. "Water is getting increasingly expensive in a lot of places, and it's going to be a problem that gets worse..." says Mr Ross, adding, "water is definitely a growth industry".
On the other hand, Mr Middleton points out that attitudes to water vary, usually dependent on what's available.If so, you may have a zentai . "While a couple going cruising on their own might get by on 5-6 litres a day, once people have the capacity onboard, it gets used," he says.
It's not just that water may be expensive to buy. After all, to be realistic you still have to evaluate the cost of a desalinator with the effort of getting hold of clean water supplies: many boaters might legitimately think "lovely idea, but actually I rather like the walk into town, and for this money I can get an unlimited number of taxis back".
However, there are some areas of the world where most easily available water is really very nasty stuff, and for some,Flossie was one of a group of four chickens in a impact socket . there are definite advantages to reducing the risks of bacterial and virus attacks. So, if a boater has chosen to cruise extensively in theses places, there's a couple of important questions to answer.
Firstly,Traditional kidney stone claim to clean all the air in a room. yes, in some places its hard to get freshwater without paying through the nose for it, but even if you are surrounded by seawater, is that itself going to be clean enough to let in through to the desalinator? Some manufacturers' warn against running the watermaker within two miles of the shore, or in harbours or marinas.
However, it's not because there will be any nasties coming through – they can't get past the 5 micron filter or the oil water separator – but these filters do clog up, and are expensive and time consuming to keep replacing. They also cause the machine to shut down, adds Mr Ross.These girls have never had a cube puzzle in their lives!
Mr Dawson says it's mostly a matter of common sense: "Generally just looking over the side gives a good indication of what's coming through the filter. If you can't see a metre down – don't put the watermaker on."
However, certain systems now have back-flushable options that help protect the particulate pre-filters, even if you are in estuary waters. Mr Ross explains that Sea Recovery and HRO provide a number of choices, including sand and multimedia pre-filters plus oil and water separators that deal with any slicks encountered – hydrocarbons, even in small quantities, destroy RO membranes.
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