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Rainman Portable Watermaker - 115VAC - 140L

SKU# PORTABLE-AC-140L
$8,00899
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Rainman Portable Watermaker - 115VAC - 140L may require an additional to 2 days to ship.

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This AC-powered portable watermaker is ideal for cruisers looking for reliable freshwater production without heavy electrical demands. Producing up to 140 litres per hour, this system is built around a durable triplex plunger pump for efficient operation and low maintenance.

Simple two-part design

The system includes a pressure supply unit (PSU) and a reverse osmosis (RO) unit. The PSU draws in seawater, removes sediment, and pressurizes the water for desalination. The RO unit then extracts fresh, potable water—typically about 20% of the intake volume—while discharging the remainder as brine. Choose from different RO configurations to suit your needs.

Portable now, install later

This system is often installed thanks to its short power cord and consistent output, but it’s designed for flexibility. Start out using it as a portable desalination system, and install it later if you decide on a permanent setup. Ideal for small vessels or owners still refining their onboard layout.

Designed for dependable performance

Whether you’re outfitting a liveaboard cruiser or preparing for extended offshore trips, this saltwater desalinator delivers fresh water when and where it’s needed. A smart solution for boaters who value simplicity, reliability, and control over their freshwater supply.

Output Up to 140 litres per hour
Power Source 230VAC / 50Hz or 115VAC / 60Hz
Power Use 1,250 Watts
Current Draw 6 Amps 230VAC, 12 Amps 115VAC
Motor Type 1.5HP TEFC induction
Plug Type NEMA 5-15 (USA), CEE 7/7 (Europe), AS/NZS 3112 (Australia), BS 1363 (UK)
Power Cord Length 3 metres (10 ft) 230VAC - 10A cable (1.5mm²), 115VAC - 15A cable (2.08mm²)
Sound Level 62dB at 6 metres (Loud hum)
System Type Two-part Pressure Supply Unit (PSU) and Reverse Osmosis (RO) Unit
Pump Type General Pump / Rainman WMR triplex plunger pump
RO Membranes Two 2.5" x 40" seawater membranes
Enclosure Material Injection moulded polypropylene (PSU), polyethylene reinforced with fibreglass nylon (RO)
Operating Pressure 55 bar (800 psi)
Relief Valve Integrated General Pump 316SS
Prefilter 5 micron
Lift Pump Integrated Rainman bronze flexible impeller
Vertical Water Lift 2 metres (6 ft)
HP Hose 5 metre (16 ft)
Product Water Hose LDPE food grade - 3 metre (10 ft) 10 metre (33 ft) extension (8mm OD)
Brine Waste Hose 3 metre (10 ft), 10mm OD
Intake Hose 5 metre (16 ft) with one-way valve and detachable strainer
Impeller Included Rainman MI813 or Jabsco Profile D 22405-0001-P
5 Micron Prefilter 1 in housing 4 spares (10" x 2.5" pleated poly)
Pickle Solution 1 kg (2.2 lb) sodium metabisulfate powder
Valve/Gauge Control Integrated in RO unit
Salinity Sensor Optional handheld HM Digital COM-80
Flow Meter Pop-up acrylic analogue flow meter - 160lph/42gph
Plumbing Kit Optional
Dimensions - RO Unit 1,180 x 250 x 130mm (23.6 x 9.8 x 5.1")
Dimensions - PSU 600 x 375 x 270mm (23.6 x 14.8 x 10.6")
Control Panel Not included – can convert to installed unit