{"product_id":"johnson-pump-aqua-jet-wd-3-5-gpm-12v-washdown-kit","title":"Johnson Pump Aqua Jet WD 3.5 GPM 12V Washdown Pump Kit","description":"\u003cp class=\"nvn-hero\"\u003eThe Johnson Pump Aqua Jet WD 3.5 GPM kit is a complete 12-volt washdown system that pushes 3.5 gallons a minute at up to 70 psi. It comes with everything you need to rinse your deck, anchor, and gear: a five-chamber diaphragm pump, a 25-foot coiled hose, an inlet strainer, and a spray nozzle. Rig it up and stop hauling buckets.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Johnson Pump Aqua Jet WD 3.5 GPM washdown kit is the setup you rig up when you're tired of hauling buckets over the gunwale after a day on the water. It's a complete 12-volt deck wash system built around Johnson's five-chamber diaphragm pump, and it moves 3.5 gallons a minute at up to 70 psi. That's enough pressure to blast fish blood off the deck, rinse mud off the anchor chain, or knock salt spray off the hardtop before it dries and hazes your gelcoat.\u003c\/p\u003e\n\u003cp\u003eHere's what you get in the box. The pump itself, a PUMProtector inlet strainer, a 25-foot coiled hose with a 1\/2-inch inside diameter, a bulkhead fitting with a shutoff valve, and a spray nozzle with a built-in check valve. Johnson also throws in the barb port fittings and hose connectors, so you're not making a parts-counter run halfway through the install. Everything threads together with 3\/8-inch BSP by 1\/2-inch barb ports.\u003c\/p\u003e\n\u003cp\u003eWhat does 70 psi actually buy you? Faster cleanup. At 5 bar the spray has enough bite to lift dried salt and slime without you scrubbing, and the higher pressure means you use less water to do the same job. That matters when you're rinsing off at a mooring or running the washdown off the same tank that feeds your other raw-water systems. Lower-pressure pumps just push water around. This one cleans.\u003c\/p\u003e\n\u003cp\u003eTypical jobs it handles without complaint:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRinsing salt spray off the hardtop, windshield, and canvas\u003c\/li\u003e\n\u003cli\u003eWashing fish blood and bait slime off the cockpit sole\u003c\/li\u003e\n\u003cli\u003eCleaning mud and weed off the anchor and rode as it comes up\u003c\/li\u003e\n\u003cli\u003eKnocking sand off feet, coolers, and gear before they hit the deck\u003c\/li\u003e\n\u003cli\u003eDeck-side cleanup at the dock when the hose won't reach\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWho's this for? Center consoles, walkarounds, and cruisers in the 20 to 30 foot range where you want a real deck rinse without running the bigger 5.2 GPM pump. The 3.5 flows plenty for a single hose station. If you're washing down a big sportfish with two anglers going at once, step up to the larger pump. But for most boats, this is the sweet spot between water volume and current draw.\u003c\/p\u003e\n\u003cp\u003eMount it right and it'll run quiet and last. The five-chamber diaphragm design is smoother than an old two-chamber pump, but any washdown pump makes some noise. We tell folks to set it on rubber isolation mounts and put it somewhere it won't drum against a hollow console panel. Keep the suction run short, mount the pump low relative to the water source, and the built-in pressure switch cycles cleanly instead of hunting.\u003c\/p\u003e\n\u003cp\u003eThe one thing that kills these pumps early is grit. Saltwater and sand chew up diaphragms and valves if you skip the strainer. Johnson's PUMProtector screen is in the kit for a reason, so plumb it inline on the suction side and rinse it out now and then. Do that and you'll get years out of it. Skip it, and you'll be pulling the head apart after a couple of seasons.\u003c\/p\u003e\n\u003cp\u003eWiring is straightforward. It's a 12-volt DC pump that draws in the neighborhood of 6 to 8 amps under load, so run it on 14-gauge wire with a 10-amp fuse and you're set. The included two-way panel switch drops into a standard dash cutout. If you've wired a bilge pump or a livewell, you can handle this in an afternoon.\u003c\/p\u003e\n\u003cp\u003eA couple of real-world notes from folks who've lived with these. The coiled hose is handy for storage but it can kink if you yank it around a hard corner, so route it with a little slack. And that pressure switch is doing the work of turning the pump on and off as you squeeze the trigger, which means you can leave the pump powered at the panel and just grab the nozzle whenever you need it. No separate valve to fumble with.\u003c\/p\u003e\n\u003cp\u003eBottom line, it's a proven, no-drama washdown setup from a pump maker that's been building marine diaphragm pumps for decades. Rig it up once, feed it clean water through the strainer, and it'll rinse your deck for a long time.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e3.5 GPM (13 L\/min) flow rate moves enough water for a single-station deck rinse on most 20 to 30 foot boats\u003c\/li\u003e\n  \u003cli\u003e70 psi (5 bar) max pressure lifts dried salt and fish slime without hand scrubbing\u003c\/li\u003e\n  \u003cli\u003eFive-chamber positive displacement diaphragm pump runs smoother and quieter than older two-chamber designs\u003c\/li\u003e\n  \u003cli\u003e25-foot (7.5 m) coiled 1\/2-inch hose reaches bow to stern and stores compact\u003c\/li\u003e\n  \u003cli\u003ePUMProtector inlet strainer keeps grit out of the diaphragm and valves for longer pump life\u003c\/li\u003e\n  \u003cli\u003eSpray nozzle with built-in check valve holds prime so the pump cycles cleanly\u003c\/li\u003e\n  \u003cli\u003eBulkhead fitting with shutoff valve for a clean transom or gunwale connection\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch BSP by 1\/2-inch barb ports with included connectors, no extra parts run\u003c\/li\u003e\n  \u003cli\u003e12V DC operation wires into a standard panel with 14-gauge wire and a 10-amp fuse\u003c\/li\u003e\n  \u003cli\u003eTwo-way panel switch included for dash-mounted on\/off control\u003c\/li\u003e\n  \u003cli\u003eIntegrated pressure switch cycles the pump on demand as you squeeze the trigger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Johnson Pump reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's included in the Aqua Jet WD 3.5 GPM kit?\u003c\/summary\u003e\n    \u003cp\u003eThe 12V pump, a PUMProtector inlet strainer, a 25-foot coiled 1\/2-inch hose, a bulkhead fitting with valve, a spray nozzle with check valve, barb port fittings, hose connectors, and a two-way panel switch. It's a complete washdown package, so you don't need to source extra parts to get running.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow much water and pressure does it put out?\u003c\/summary\u003e\n    \u003cp\u003eIt flows 3.5 GPM, about 13 liters a minute, and builds up to 70 psi, which is 5 bar. That's plenty of bite to rinse salt, mud, and fish slime off the deck without hand scrubbing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size boat is this pump right for?\u003c\/summary\u003e\n    \u003cp\u003eIt's a good match for center consoles, walkarounds, and cruisers roughly 20 to 30 feet running a single washdown station. If you've got a larger boat or want two people rinsing at once, step up to the 5.2 GPM version.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat gauge wire and fuse does it need?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 12-volt pump that draws roughly 6 to 8 amps under load. Run it on 14-gauge wire with a 10-amp fuse and you'll be in good shape. Keep the runs short and the connections sealed against spray.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I really need to use the inlet strainer?\u003c\/summary\u003e\n    \u003cp\u003eYes. The PUMProtector screen keeps sand and grit out of the pump. Skip it and debris will chew up the diaphragm and valves, usually within a season or two in saltwater. Plumb it inline on the suction side and rinse it now and then.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it noisy?\u003c\/summary\u003e\n    \u003cp\u003eAny washdown pump makes some noise, but the five-chamber diaphragm design is smoother than older pumps. Mount it on rubber isolation feet and keep it off a hollow panel that would drum, and it stays reasonable.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it hold pressure when I let go of the trigger?\u003c\/summary\u003e\n    \u003cp\u003eYes. The built-in pressure switch shuts the pump off when you release the nozzle and kicks it back on when you squeeze. You can leave it powered at the panel and just grab the hose when you need it.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use my own hose instead of the coiled one?\u003c\/summary\u003e\n    \u003cp\u003eYou can. The coiled hose is handy for compact storage but it can kink around a tight corner. Plenty of owners run a reinforced 1\/2-inch line instead. Just match the port fittings and keep the inside diameter at 1\/2 inch so you don't choke the flow.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the port fittings?\u003c\/summary\u003e\n    \u003cp\u003eThe pump uses 3\/8-inch BSP threads to 1\/2-inch barb ports, and the connectors come in the kit. That lets you tie into standard 1\/2-inch washdown hose right out of the box.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump Aqua Jet WD 3.5 GPM 12V Pump Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eJP-64535\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e729321911627\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFlow Rate\u003c\/th\u003e\n\u003ctd\u003e3.5 GPM (13 L\/min)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMax Pressure\u003c\/th\u003e\n\u003ctd\u003e70 psi (5 bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePump Type\u003c\/th\u003e\n\u003ctd\u003eFive-chamber positive displacement diaphragm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePort Fittings\u003c\/th\u003e\n\u003ctd\u003e3\/8 inch BSP x 1\/2 inch barb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHose\u003c\/th\u003e\n\u003ctd\u003e25 ft (7.5 m) coiled, 1\/2 inch I.D.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInlet Strainer\u003c\/th\u003e\n\u003ctd\u003ePUMProtector, included\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSpray Nozzle\u003c\/th\u003e\n\u003ctd\u003eIncluded, with check valve\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBulkhead Fitting\u003c\/th\u003e\n\u003ctd\u003eIncluded, with valve\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePanel Switch\u003c\/th\u003e\n\u003ctd\u003eTwo-way, included\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e7.3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eJohnson Pump (SPX Flow)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's included in the Aqua Jet WD 3.5 GPM kit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 12V pump, a PUMProtector inlet strainer, a 25-foot coiled 1\/2-inch hose, a bulkhead fitting with valve, a spray nozzle with check valve, barb port fittings, hose connectors, and a two-way panel switch. It's a complete washdown package, so you don't need to source extra parts to get running.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How much water and pressure does it put out?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It flows 3.5 GPM, about 13 liters a minute, and builds up to 70 psi, which is 5 bar. That's plenty of bite to rinse salt, mud, and fish slime off the deck without hand scrubbing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size boat is this pump right for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a good match for center consoles, walkarounds, and cruisers roughly 20 to 30 feet running a single washdown station. If you've got a larger boat or want two people rinsing at once, step up to the 5.2 GPM version.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What gauge wire and fuse does it need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 12-volt pump that draws roughly 6 to 8 amps under load. Run it on 14-gauge wire with a 10-amp fuse and you'll be in good shape. Keep the runs short and the connections sealed against spray.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I really need to use the inlet strainer?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The PUMProtector screen keeps sand and grit out of the pump. Skip it and debris will chew up the diaphragm and valves, usually within a season or two in saltwater. Plumb it inline on the suction side and rinse it now and then.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it noisy?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Any washdown pump makes some noise, but the five-chamber diaphragm design is smoother than older pumps. Mount it on rubber isolation feet and keep it off a hollow panel that would drum, and it stays reasonable.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it hold pressure when I let go of the trigger?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. The built-in pressure switch shuts the pump off when you release the nozzle and kicks it back on when you squeeze. You can leave it powered at the panel and just grab the hose when you need it.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use my own hose instead of the coiled one?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"You can. The coiled hose is handy for compact storage but it can kink around a tight corner. Plenty of owners run a reinforced 1\/2-inch line instead. Just match the port fittings and keep the inside diameter at 1\/2 inch so you don't choke the flow.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the port fittings?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The pump uses 3\/8-inch BSP threads to 1\/2-inch barb ports, and the connectors come in the kit. That lets you tie into standard 1\/2-inch washdown hose right out of the box.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Johnson Pump","offers":[{"title":"Default Title","offer_id":44859433713757,"sku":"69406","price":171.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/69406XL.jpg?v=1785882663","url":"https:\/\/nvnmarine.com\/products\/johnson-pump-aqua-jet-wd-3-5-gpm-12v-washdown-kit","provider":"NVN Marine","version":"1.0","type":"link"}