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Problem with Dessalator Duo D60
Until this morning my watermaker was in a perfect working order, but after I have replaced a raw water filter, flushed the new filter and the rest of the system with a fresh water from a water tank to get rid off air bubbles and returned the valve into a “sea water” position, the flow meter and the pressure gauge did not go above Zero even with the pressure knob turned to a maxim position.
Then I had run a main engine for a while to make sure that there was enough sea water in the strainer and also tried to run the watermaker with a fresh water (with a bit of help from the fresh water pump), but to no avail at all: both a flow meter and a pressure gauge steadily remained at Zero.
NB There was a water outflow clearly visible outside, although it seemed to be somewhat weaker than before, when my watermaker was properly functioning.
So I would really appreciate, if you could share with me any ideas on how to fix it.
Thank you very much,
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Alex, you did not say which Dessalator system you have. I am going to answer as though you have a D160. If not the answer is similar.
Most likely you have air in the High-pressure Pump intake manifold. This is where the very small line is attached that goes to the Low-Pressure Gauge.
In the future follow this procedure.
If you turn the pressure valve all the way clockwise should never be done. You do not want to do this because it will close the seawater output completely. Dessalator designed a High-pressure safety sensor that if working correctly and has not been tampered with, will turn the system OFF to prevent damage.
The best way to get all of the air out is to run the system with zero pressure for about 10-15 minutes, then slowly increase the pressure until you see water in the flow meter. At that point gauge(s) should work.
If the gauge(s) do not work, it is likely the small line from the input manifold is clogged. I have an Amel Book Supplement Procedure for that...email me.
On Tue, Feb 14, 2023 at 5:43 AM Alex Lomakin via groups.io <email@example.com> wrote:
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