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Marine Watermaker: Do It Yourself | Sailing Sunday
24 de diciembre de 2021 · 6 min · 37K vistas
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Ryan from the boat Sunday built a DIY marine watermaker for approximately $1,500 that produces nearly 100 liters of fresh water per hour.0:09 The system utilizes a 12-volt pre-pump rated at 35 liters per minute, which feeds water through 20-micron and 5-micron sediment filters to protect the high-pressure components.1:50 A 220-volt, 2-horsepower Cat pump drives the water through a reverse osmosis membrane housed in a 2.5-inch by 40-inch pressure vessel.2:34 The system requires a needle valve to maintain 800 PSI and a pressure gauge to monitor output.1:20 High-pressure sections use hydraulic hoses and stainless steel fittings, with specific attention required to match thread types like BSPP, BSPT, or NPT to prevent leaks.3:02 The electrical setup includes a dedicated circuit breaker and a 20-amp switch for the high-pressure pump, which runs off the boat's 5.5 kVA generator.4:40 A battery-operated TDS monitor measures water purity.3:44 Using off-the-shelf parts ensures the system remains field-repairable in remote locations.5:24
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