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Economy Watermakers for Yachts - 115/230 V AC 21 GPH / 79 LPH to 70 GPH / 260 LPH

Build your modular watermaker to your preferences.

ECHOTec Economy Watermakers come with everything you need to install onboard and produce freshwater from the sea. If the high-pressure pump will be installed less than 40cm below the waterline, an optional seawater feed pump will be required. Customize to your preferences with the options and upgrades in the below table.
The workhorse AML Yacht Series is entered for specifications and cost comparison and as a benchmark for ultimate performance and reliability.

Please call or email with any question you may have (WhatsApp/Phone: +1 868 382 2323), e-mail: info[AT]

Economy AC-21 shown with optional equipment
Economy AC-21 Pressure vessel with standard gauges and regulator
System Standard Features, Options and Upgrades430-AML-11000-AML-25Option to Upgrade add US$
GPH / LPH 21 / 79 40 / 132-
Upgrade Economy 21 to 40 GPH / 152 LPHCONTACT US
Upgrade Economy 21 to 55 GPH / 210 LPHCONTACT US
Upgrade Economy 21 to 70 GPH / 260 LPHCONTACT US
High-Pressure Pump Head, AISI 316CONTACT US
High-Pressure Pump, Low NoiseCONTACT US
High-Pressure hoses, O-Ring SealedCONTACT US
Fittings and Regulator, DuplexCONTACT US
Pump Motor Epoxy SealedCONTACT US
Anti-Vibration Pump Unit MountCONTACT US
Duplex Upgrade - each Membrane VesselCONTACT US
Filter Brackets 3pcs. AISI 316CONTACT US
Remote Control Panel, AISI 316CONTACT US
Electrical Control, low voltage safety relaysCONTACT US
High Pressure Gauge, AISI 316L / MonelCONTACT US
40’ Braided Hose / AISI 316 clampsCONTACT US
Manual Product Diverter ValveCONTACT US
Cleaning/Storage 3-Way ValveCONTACT US
Hardener / pH neutralizerCONTACT US
Feed Pump, CentrifugaloptionaloptionalCONTACT US
Feed Pump, Diaphragmn/an/aCONTACT US
Filter Condition Gauge AISI 316LoptionaloptionalCONTACT US
Filter Condition Gauge AISI 303optionaloptionalCONTACT US
TDS Meter, Real TimeoptionaloptionalCONTACT US
Flush Kit, w. valve, AISI316 bracketoptionaloptionalCONTACT US
Flush Kit, basic, Alu bracketoptionaloptionalCONTACT US
Flush TimeroptionaloptionalCONTACT US
Delivery TimesIn StockIn Stock-
Warranty on complete system3 years3 years-
Warranty on HP Pumplifelonglifelong-
Warranty on Pressure Vessel/slifelonglifelong-
Warranty on Fittings and Regulatorlifelonglifelong-

Optional Equipment and Upgrades. 

Upgrade Economy 21 (Discontinued)
Upgrade motor, high pressure pump and membrane vessel/s to
40 GPH / 152 LPH – 55 GPH / 210 LPH – 70 GPH / 260 LPH

High-Pressure Pump Head
Corrosion resistant Stainless steel AISI 316 pump head, ceramic pistons, and stainless valves versus Nickel plated brass head, ceramic pistons, and stainless valves. Increase warranty on pump head from 2 years to 5 years.

High-Pressure Pump (Low Noise Pump Upgrade)
Extremely silent pump design. Quietest pump on the market.
Only available in combination with the AISI 316 stainless steel pump head upgrade.
This pump comes with a lifelong warranty.

High-Pressure Hoses 
Standard: 2 pcs 5’ / 1.5m fixed length hoses (can be ordered in lengths to fit your installation) with AISI 316 compression fittings.
Upgrade: 15’ / 4.5m high pressure hose with field attachable AISI 316 O-ring sealed fittings.

Fittings and Regulator
DUPLEX 1.4462 (similar to 2205) is more costly and more difficult to form and machine but achieves almost twice the corrosion resistance of AISI 316 stainless steel.
DUPLEX has been successfully used for all high-pressure fittings and pressure regulators of ECHOTec commercial desalination systems for the past 10 years. The Duplex package comes now with all AML Series watermakers and is available as an option for the Economy Series.
The Duplex package comes with a lifetime warranty.

Pump Motor Epoxy Sealed
Completely sealed and Epoxy plus Polyurethane coated wash-down motor versus standard motor.

Anti-Vibration Pump Mount
Anti-vibration motor/pump unit mount with specially engineered soft vibration dampers. 
This feature dramatically reduces noise transfer into the hull.

Membrane Vessel Assembly 
DUPLEX 1.4462 versus AISI 316 vessel components come with a lifelong warranty on the complete membrane vessel.

Filter Brackets 3pcs. 
Extremely rigid brackets from AISI 316 versus painted standard brackets from aluminum.

Remote Control Panel
AISI 316 stainless steel control panel for remote operation (completely assembled).

Electrical Control Unit
Low voltage automatic breakers actuate waterproof enclosed heavy-duty 24 VAC double pole motor starters for feed pump and high-pressure pump. Prewired and ready to connect.

High Pressure Gauge
Upgrade: All AISI 316 stainless steel with Monel bourdon tube
Standard: Plated brass connection with AISI 304 case and AISI 316 bourdon tube.
Braided Hose / AISI 316 hose clamps
40’ braided hose with 29 pcs AISI 316 hose clamps versus 15” Polypropylene tubing.

Manual Product Diverter Valve
3-Way valve to switch from dumping (the first high salinity product) to filling the tank with potable product water.
Complete with AISI 316 mounting bracket.

Cleaning/Storage 3-Way Valve
Allows infusion of cleaning and storage solutions with the flick of a valve.
Complete with AISI 316 mounting bracket.

Hardener / pH neutralizer
Kit with mineral element and 2 pcs 3/8” compression fittings, stainless steel bracket with screws.

Feed Pump, Centrifugal / Feed Pump, Diaphragm
While the magnetic drive seal-less centrifugal pump is more costly, it does not deplete as much as diaphragm pumps.
The centrifugal pump is recommended as it provides constant feed flow, without building unnecessary pressure that results in excessive power consumption and wear. A diaphragm pump is a positive displacement pump which will be feeding another positive displacement pump.
Cheaper but not a good combination.

Filter Condition Gauge AISI 316L / AISI 303
The low-pressure gauge indicates when the pre-filters have to be changed or the through-hull becomes clogged (barnacles etc.).
Low pressure gauge (AISI 316 dial / Monel bourdon tube) -30 +60PSI, ¼” NPT threads direct into the 20-micron filter housing, AISI 316 filter bracket with cutout for gauge.
Low pressure gauge (AISI 304 housing / AISI 316 bourdon tube) -30 +60PSI, ¼” NPT threads direct into the 20-micron filter housing.

TDS Meter, Real Time
Fixed installed, indicates the product quality in real time.

Freshwater Flush Kit
The fresh water flush kit enables to store the watermaker for up to 10 days without the use of chemicals (biocide). 
The fresh water flush storage can be repeated every 10 days.
Flash Kit (Valve) contains: 1 Filter housing, 1 active carbon cartridge, Bracket (AISI 316SS), 8 screws, 1 shut off valve, 2 hose barb connectors, 1 Nylon nipple, 1 Nylon tee, 10 ft. braided hose, 5 hose clamps (AISI 316SS). 
Flush Kit (Basic) contains: 1 Filter housing, Non-return valve, 1 active carbon cartridge, Aluminum bracket, 2 tube connectors.

Flush Timer
Battery operated timer to time limit manual flash or automatically repeat flash at operator’s selected interval and duration.


Please enquire for most economical airfreight charges to any international airport
or FedEx door-to-door delivery.

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