SeaMaker 30 Gallon per Hour Water Maker Model
Our best selling water maker is the SM30 and I think the reasons are realatively straight forward:
1. 50% more fresh water Production.
The only difference between the SM20 and SM30 is that the SM20 has a single 40″ RO membrane while the SM30 adds a second 40″ RO membrane plumbed in series. So membrane one produces 21GPH while membrane two produces an additional 12GPH. This gives you a 50% increase in fresh water production for the exact same power usage, generator run time, and support equipment.
If one of the two RO membranes was to fail you can easily run the unit on a single RO membrane and continue along with a 20GPH water maker until you get a replacement RO membrane.
3. Relative Cost adder over the SM20
The price difference between the SM20 and SM30 is $855. So for that price adder you get 50% more fresh water production along with the redundancy feature of having two independent membranes.
I made a YouTube video discussing the differences between the SM20, SM30 and SM40 water maker manuals. You can view the video at this link:
YouTube Video Link
Here is a detailed description of the 5 modules that comprise the SM30 water maker.
Module 1: High Pressure Pump and Motor Assembly
One General Pump Company triplex plunger pump with a 316 stainless steel manifold and wetted parts, solid ceramic plungers and an anodized aluminum crankcase mechanically coupled to a 1.0Hp 120/220VAC electric motor. Fitted with a pressure relief valve preset to 950 PSI.
Module 2: RO Pressure Vessel Assembly
Two filament wound fiberglass/epoxy pressure vessels
Two Dow Filmtec Polyamide thin-film composite high salt rejection RO Membranes
Four fiberglass clamps affixed to fiberglass mounting feet, two per pressure vessels
One 3ft long 3/8″ high pressure braided stainless steel silicone covered hose for connecting the high pressure pump outlet to the RO pressure vessel. (Longer hose available upon request for an additional charge)
Module 3: Pre-filter and Boost Pump Assembly
Two 10” clear filter housings with mounting bracket
One 20 micron pre-filter element
One 5 micron pre-filter element
One self-priming 12V DC Jabsco boost pump
(Also available in120VAC, 208-240VAC, and 24VDC)
Module 4: Valving and Cleaning Assembly
One clear filter housing with mounting bracket
One activated carbon filter element
Two 3-way valves for selecting:
- normal operation of inlet seawater
- fresh water rinse from ships tanks
- or pickling solution
Module 5: Remote Control Panel
An anodized aluminum panel with the following system controls:
One 0-1 GPM flow meter
One 0-1500 system pressure gauge
One product water selector 3-way valve
One stainless steel pressure regulating needle valve
One 12VDC boost pump electrical switch
One 120VAC high pressure pump electrical switch
One boost Pump pressure gauge
One boost pump regulating needle valve
One 5ft 3/8″ high pressure braided stainless steel silicon coated hose (Longer hose available upon request for an additional charge)
Miscellaneous Included Equipment & Supplies:
30ft of green 1/2″ Polyethylene sea water tubing
30ft of blue 1/4″ Polyethylene product water tubing
30ft of red 1/4″ Polyethylene brine water tubing
20ft of black 3/8″ Polyethylene bypass water tubing
10ft of Orange 3/8″ Polyethylene pickling water tubing
One cutter for the water tubing
One spacing tool for proper insertion and removal of water tubing into push connector
One 1/2″ male NPT to push connector fitting for connecting to your seawater inlet source
One 1/2″ male NPT to push connector fitting for connecting to your ships water system for fresh water flushing of the water maker
Three 1/4″ male NPT to push connector fittings for connecting the brine, product water, and sample water outlet lines to your ships plumbing
Locking clips for all push connector fittings
Electronic copy of the Installation, Operation and Maintenance manual on USB Stick
(hard copy manual available on request at our cost of $23)
One filter housing wrench for filter element replacement
5 pounds of pickling reagent
One hand-held TDS meter for checking water quality
Four spare 1/2″ male NPT 90° elbow to push connector fitting if needed to replace the straight fittings which are pre-mounted on the modules for making the system plumbing easier
An assortment of push-to-connect fittings to aid in installation
What we Don’t Provide. In other words, what you will need to supply:
I made a YouTube Video going over the details and you can watch that
here: YouTube Video Link
Raw water through hull
Raw water sea strainer (we recommend one like this)
Electrical installation wire and breakers for the AC and DC Pumps
Mounting screws and bolts for the individual system Modules
Zip ties and mounting straps for securing the electrical and water lines
That’s it! Everything else we provide with the with the water maker.
Water Maker Module Sizes:
The below table provides the length, width, height, and weight of the various water maker modules. The listed dimensions represent the greatest size measurement to create a box that the module can be contained within. However, as can be seen in the module photo images, the modules could actually fit into a smaller space depending upon the installation orientation.
* Please notify us if you plan a 220VAC installation so we can change the standard 120VAC electrical switch in your remote panel.
* Standard Boost pump is a 12VDC self-priming pump.
(Here is a link to a Video we made explaining why we like the 12V DC pump)
* A 120VAC Boost pump option available using 1.5Amp is an additional $200.
* A 24VDC Boost pump is available using 6.5Amp is an additional $200.