{"id":18105,"date":"2026-10-14T12:54:33","date_gmt":"2026-10-14T12:54:33","guid":{"rendered":"https:\/\/drakemarine.com\/product\/spot-zero-sz-iii-water-purifier\/"},"modified":"2026-10-15T02:51:22","modified_gmt":"2026-10-15T02:51:22","slug":"spot-zero-sz-iii-water-purifier","status":"publish","type":"product","link":"https:\/\/drakemarine.com\/fr\/product\/spot-zero-sz-iii-water-purifier\/","title":{"rendered":"Spot Zero SZ III Double Pass Water Purifier \u2014 Semi-Automatic, 1,000 \/ 2,000 \/ 3,000 GPD"},"content":{"rendered":"

Le Spot Zero SZ III<\/strong> delivers the same double-pass reverse-osmosis purification as the ZTC II \u2014 dock water or watermaker output down to about 10 ppm, spot-free washdown and bottled-quality water throughout \u2014 with a semi-automatic control system and a backlit LCD in place of the 7-inch touchscreen. For a crew that is happy to press a button and check a reading, it is the lower-cost route to the same water.<\/p>\n

Sp\u00e9cifications<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
Capacit\u00e9<\/th>\n1,000 \/ 2,000 \/ 3,000 US gal per day (3,785 \/ 7,570 \/ 11,356 L per day); up to 125 gal\/h. Upgradable to 3,000 GPD<\/td>\n<\/tr>\n
Feed water<\/th>\nDock water, or the output of a seawater watermaker<\/td>\n<\/tr>\n
Sortir<\/th>\nAbout 10 ppm TDS or less<\/td>\n<\/tr>\n
Recovery<\/th>\nUp to 66 % of feed water<\/td>\n<\/tr>\n
Pouvoir<\/th>\n230 V 60 Hz, 5 A; 220 V 50 Hz, 4.9 A<\/td>\n<\/tr>\n
Commandes<\/th>\nBacklit LCD, semi-automatic operation; optional remote LCD<\/td>\n<\/tr>\n
Int\u00e9gration<\/th>\nNMEA 2000 compatible<\/td>\n<\/tr>\n
Boat size<\/th>\n50\u2013120 ft, per Spot Zero<\/td>\n<\/tr>\n
Garantie<\/th>\n12 months or 1,000 hours, parts and labour; extensions available<\/td>\n<\/tr>\n
Made in<\/th>\nUSA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Configurations and factory part numbers<\/h3>\n\n\n\n\n\n\n\n
Mod\u00e8le<\/th>\nPer hour<\/th>\nPer day<\/th>\nMembrane vessels<\/th>\nFactory P\/N 115 V<\/th>\nFactory P\/N 230 V<\/th>\n<\/tr>\n<\/thead>\n
SZ III 1000<\/td>\n42 gal \/ 158 L<\/td>\n1,000 gal \/ 3,785 L<\/td>\nShort vessel<\/td>\non request<\/td>\non request<\/td>\n<\/tr>\n
SZ III 2000<\/td>\n83 gal \/ 314 L<\/td>\n2,000 gal \/ 7,571 L<\/td>\nOne long vessel, remote mounted<\/td>\n9610003810<\/td>\n9610003808<\/td>\n<\/tr>\n
SZ III 3000<\/td>\n125 gal \/ 473 L<\/td>\n3,000 gal \/ 11,356 L<\/td>\nTwo long vessels, remote mounted<\/td>\n9610003807<\/td>\n9610003806<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Spot Zero notes that production capacity can be affected at 50 Hz: the pump motor turns slightly slower on a 50 Hz supply, so a system installed for Thailand is sized with that in mind. Tell us the daily water need and we will specify the capacity that delivers it on 50 Hz.<\/p>\n

Dimensions (Spot Zero drawings)<\/h3>\n\n\n\n\n\n\n\n\n\n
Control unit<\/th>\nVertical bulkhead-mounted box 445 mm W \u00d7 416 mm H \u00d7 328 mm D (17.5 \u00d7 16.4 \u00d7 12.9 in), with the LCD, keypad and three flow and pressure instruments on the face<\/td>\n<\/tr>\n
SZ III 2000 membrane vessel<\/th>\n1,216 mm L \u00d7 231 mm H with brackets (47.9 \u00d7 9.1 in), bracket depth 150 mm<\/td>\n<\/tr>\n
SZ III 3000 membrane vessels<\/th>\nTwo vessels in a rack 1,195 mm L \u00d7 419 mm H (47.1 \u00d7 16.5 in)<\/td>\n<\/tr>\n
FW commercial pre-filter, 4.5 \u00d7 20 in (standard)<\/th>\n291 mm W \u00d7 197 mm D \u00d7 598 mm H (11.4 \u00d7 7.8 \u00d7 23.5 in)<\/td>\n<\/tr>\n
Short FW pre-filter assembly (option)<\/th>\nTwin 4.5 \u00d7 10 in, 375 mm W \u00d7 197 mm D \u00d7 315 mm H \u2014 no upcharge if specified when ordering<\/td>\n<\/tr>\n
Bacteriostatic remineraliser & pH neutraliser (standard)<\/th>\n160 mm \u00d7 124 mm head, 316 mm high<\/td>\n<\/tr>\n
Additional remote-mounted LCD keypad (option)<\/th>\n152 mm \u00d7 152 mm \u00d7 21 mm (6.0 \u00d7 6.0 \u00d7 0.8 in)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Weight is not stated on the published drawings; we confirm it with the factory for the quoted configuration.<\/p>\n

Installation, plumbing and wiring<\/h3>\n

From Spot Zero’s one-line flow drawing: the dock feed comes in through 3\/4 in ID tubing to the pre-filter (Spot Zero P\/N 252405133 (twin-housing pre-filter)); the feed from pre-filtration, the feed from the desalinator, the membrane supply and return and the overboard line are 1\/2 in OD; the membrane product and the product-to-tank lines are 3\/8 in OD. The concentrate discharge runs to an open overboard in a free and unrestricted manner, and Spot Zero recommends a pressure-relief valve set at 8 psi in the feed-from-desalinator line. The ship supplies the dock-water inlet and the run from the bacteriostatic remineraliser (Spot Zero P\/N 252404141) to the fresh-water tank.<\/p>\n

Service parts for this system<\/h3>\n

All of these are listed in our Spot Zero parts section<\/a> at Spot Zero’s US list price, special order from the factory with the lead time confirmed before you pay; tell us the model and serial number and we will confirm the exact membrane size and count for your configuration.<\/p>\n

Pre-filtration<\/strong><\/p>\n