{"product_id":"camco-39072-dual-flush-rv-holding-tank-rinser","title":"Camco 39072 Dual Flush RV Holding Tank Rinser","description":"\u003cp class=\"nvn-hero\"\u003eThe Camco Dual Flush is a clear 5-inch polycarbonate fitting that turns any standard water hose into a two-way jet for rinsing your black and gray water holding tanks. It installs inline between your sewer hose and the dump connection, and the see-through body lets you watch the water run clean so you know the tank is actually rinsed.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eHolding tanks are the part of RV and boat life nobody likes to think about, right up until they start to smell. The Camco Dual Flush is the simple fix. It's a clear 5-inch polycarbonate fitting with a complete valve assembly that installs between your sewer hose and the dump station connection, and it turns any standard water hose into a two-way jet that scours residue off the walls of your black and gray water holding tanks.\u003c\/p\u003e\n\u003cp\u003eHere's the problem it solves. Every time you dump, a little residue stays behind. Toilet paper, solids, and mineral scale build up on the tank walls and the sensor probes over weeks and months. That buildup is what causes odors, false tank-level readings, and eventually clogs. Rinsing the tank after a dump breaks that cycle. The Dual Flush gives you a strong, directed spray to do exactly that, without pulling the tank or crawling under the rig.\u003c\/p\u003e\n\u003cp\u003eThe way it works is straightforward. You connect the Dual Flush inline, hook a standard water hose to the fitting, and let the two-way jet cleaning action do the work. Water sprays back into the tank and hose while you watch through the clear polycarbonate body. That transparency is the best part of the design. You can actually see the water go from murky to clear, so you know when the tank is genuinely rinsed and not just guess at it. When the flow runs clean, you're done.\u003c\/p\u003e\n\u003cp\u003eIt handles both black and gray water tanks. Black tanks are the ones that need it most, since that's where solids and paper collect. Gray tanks tend to rinse cleaner and faster because they're mostly sink and shower water, but a periodic flush keeps grease and food residue from building up in those too. Either way, the routine is the same. Dump, rinse with the Dual Flush until the water clears, then close up.\u003c\/p\u003e\n\u003cp\u003eOne thing we always tell folks: use a vacuum breaker with it. Camco makes one (part #40395) that threads onto the setup and prevents backflow from the tank side into your fresh water hose. It's cheap insurance against cross-contamination, and you never want waste water sneaking back up a hose you might later use for drinking or washing. Keep a dedicated hose for tank rinsing and never mix it with your potable water hose. That's basic sanitation and it matters.\u003c\/p\u003e\n\u003cp\u003eInstall is tool-free for the most part. The fitting uses standard threads, so it connects to your sewer hose and dump connection without adapters. A wrap of Teflon tape on the threads helps seal things up and stops weeping at the connections, which is worth doing the first time you set it up. Once it's together, operating it is just a matter of opening the valve, running water, and watching the clear body.\u003c\/p\u003e\n\u003cp\u003eThe polycarbonate construction is tough and made to take the pressure of a hose stream, but it's still plastic, so store it out of long-term direct sun and cycle the valve now and then during the off-season so it doesn't seize. A quick flush and a valve cycle before you put the rig or boat away for winter keeps it working season after season.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Any RV owner, camper, or boater with a black or gray water holding tank who wants a cleaner, less smelly system without a lot of fuss. It's a small piece of gear that punches above its weight. For the price of a couple tanks of fuel, you get a tool that keeps your sensors reading right, cuts odors at the source, and extends the life of your whole waste system. First-timers find it makes the least fun chore a lot more manageable, and seasoned owners keep one in the wet bay because it just works.\u003c\/p\u003e\n\u003cp\u003eIt's the patented Camco design, built by a company that's been making RV and marine sanitation gear since 1966. If you're tired of guessing whether your tank is actually clean, the clear body answers that question every time.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eClear 5-inch polycarbonate fitting lets you watch the water run from murky to clean, so you know the tank is actually rinsed\u003c\/li\u003e\n  \u003cli\u003eTwo-way jet cleaning action blasts residue off tank walls and sensor probes to cut odors at the source\u003c\/li\u003e\n  \u003cli\u003eComplete valve assembly included, ready to install inline between your sewer hose and dump connection\u003c\/li\u003e\n  \u003cli\u003eStandard water hose attachment works with any garden or RV water hose you already own\u003c\/li\u003e\n  \u003cli\u003eCleans both black and gray water holding tanks\u003c\/li\u003e\n  \u003cli\u003ePatented Camco design built for years of seasonal use\u003c\/li\u003e\n  \u003cli\u003eStandard threaded connections need no adapters, a wrap of Teflon tape seals them tight\u003c\/li\u003e\n  \u003cli\u003ePairs with the Camco vacuum breaker (#40395) to prevent backflow into your fresh water hose\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 Camco 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 does the Camco Dual Flush do?\u003c\/summary\u003e\n    \u003cp\u003eIt rinses residue out of your black and gray water holding tanks. You connect it inline between your sewer hose and the dump station connection, hook up a standard water hose, and the two-way jet spray scours the tank walls clean.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does it connect to my setup?\u003c\/summary\u003e\n    \u003cp\u003eThe Dual Flush uses standard threads and installs between your sewer hose and the dump connection with no adapters needed. A standard garden or RV water hose threads onto the fitting to supply the spray.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy is the fitting clear?\u003c\/summary\u003e\n    \u003cp\u003eThe 5-inch polycarbonate body is transparent so you can watch the water run from murky to clean. When the flow clears up, you know the tank is actually rinsed instead of guessing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it on both black and gray tanks?\u003c\/summary\u003e\n    \u003cp\u003eYes. It works on both. Black tanks need it most since that's where solids and paper collect, but a periodic flush keeps gray tanks free of grease and food residue too.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need a vacuum breaker with it?\u003c\/summary\u003e\n    \u003cp\u003eWe strongly recommend one. Camco's vacuum breaker (part #40395) prevents backflow from the tank side into your fresh water hose, which protects against cross-contamination. Always use a dedicated hose for tank rinsing.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it work with any water hose?\u003c\/summary\u003e\n    \u003cp\u003eYes, it accepts any standard water hose attachment. Use a hose you keep dedicated to tank rinsing, never your potable water hose.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the fitting made of?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 5-inch clear polycarbonate fitting with a complete valve assembly. The polycarbonate stands up to hose pressure while staying see-through.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I keep it working season after season?\u003c\/summary\u003e\n    \u003cp\u003eSeal the threads with Teflon tape on install, store it out of long-term direct sun, and cycle the valve now and then during the off-season so it doesn't seize.\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\u003eCamco Dual Flush Holding Tank Rinser\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eCamco\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eCamco\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e39072\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e014717390729\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHolding Tank Rinser\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eBlack and Gray Water Holding Tanks\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFitting Length\u003c\/th\u003e\n\u003ctd\u003e5 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFitting Material\u003c\/th\u003e\n\u003ctd\u003eClear Polycarbonate\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCleaning Action\u003c\/th\u003e\n\u003ctd\u003eTwo-Way Jet Spray\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWater Connection\u003c\/th\u003e\n\u003ctd\u003eStandard Water Hose Attachment\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eValve\u003c\/th\u003e\n\u003ctd\u003eComplete Valve Assembly Included\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003ctd\u003ePatented\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRecommended Accessory\u003c\/th\u003e\n\u003ctd\u003eCamco Vacuum Breaker #40395\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAmazon ASIN\u003c\/th\u003e\n\u003ctd\u003eB000BUU5T0\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 does the Camco Dual Flush do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It rinses residue out of your black and gray water holding tanks. You connect it inline between your sewer hose and the dump station connection, hook up a standard water hose, and the two-way jet spray scours the tank walls clean.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does it connect to my setup?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The Dual Flush uses standard threads and installs between your sewer hose and the dump connection with no adapters needed. A standard garden or RV water hose threads onto the fitting to supply the spray.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why is the fitting clear?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 5-inch polycarbonate body is transparent so you can watch the water run from murky to clean. When the flow clears up, you know the tank is actually rinsed instead of guessing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it on both black and gray tanks?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It works on both. Black tanks need it most since that's where solids and paper collect, but a periodic flush keeps gray tanks free of grease and food residue too.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need a vacuum breaker with it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"We strongly recommend one. Camco's vacuum breaker (part #40395) prevents backflow from the tank side into your fresh water hose, which protects against cross-contamination. Always use a dedicated hose for tank rinsing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it work with any water hose?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes, it accepts any standard water hose attachment. Use a hose you keep dedicated to tank rinsing, never your potable water hose.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the fitting made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 5-inch clear polycarbonate fitting with a complete valve assembly. 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