{"product_id":"barker-3-auto-drain-rv-waste-valve-actuator-12v-retrofit-kit-for-valterra-bristol-3-slide-valves-quick-4s-cycle-corrosion-r","title":"BARKER 3\" Auto Drain RV waste valve actuator — 12V retrofit kit for Valterra\/Bristol 3\" slide valves, quick 4s cycle \u0026 corrosion-r","description":"\u003cp\u003e\u003cstrong\u003eThe Barker 24130 3\" Auto Drain is a 12V-powered, fully automatic retrofit valve actuator that opens and closes standard 3\" RV waste slide valves with a push-button and indicator light.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you want to replace manual dumping of grey and black water tanks with a reliable electric opener, the Barker 24130 lets you retrofit existing Valterra and Bristol 3\" slide valves without cutting or reworking plumbing. The assembly mounts directly to the slide valve, runs on 12 volts, and completes an open-or-close cycle in under four seconds for the 3\" model. Materials are chosen to resist corrosion, and the kit includes the electrical switch and bracket needed for a tidy installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Barker 24130 install on my RV's existing waste valve?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be a retrofit to conventional slide valves so you won’t need to replace your waste valve or alter plumbing. The package includes a mounting bracket and rocker-arm switch box that attach to the valve and your RV interior, with clear instructions for wiring to a 12V source.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts to 3\" slide valves from Valterra and Bristol (valves not supplied)\u003c\/li\u003e\n  \u003cli\u003eBracket and rocker switch included for fast attachment\u003c\/li\u003e\n  \u003cli\u003eWires to standard 12V DC system at 200 mA draw\u003c\/li\u003e\n  \u003cli\u003eNo pipe cutting or special clamps required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and durability can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe actuator cycle is short and repeatable: the 3\" unit opens or closes in under four seconds, providing quick, positive movement so tanks drain cleanly. Components are made from corrosion-resistant steel, aluminum and plastics chosen for outdoor and wastewater environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCycle time: about 4 seconds for the 3\" model\u003c\/li\u003e\n  \u003cli\u003eCurrent draw: approximately 200 mA at 12V DC\u003c\/li\u003e\n  \u003cli\u003eConstruction: stainless-like steel, aluminum, and durable plastics\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand the exposure common to RV waste systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich valves and RV systems is this compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe Barker 24130 is built for universal retrofit onto common 3\" slide valves from major brands. Confirm your existing waste valve is a Valterra or Bristol 3\" (or a compatible conventional 3\" slide valve) before ordering to ensure a correct fit and operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Valterra and Bristol 3\" conventional waste valves\u003c\/li\u003e\n  \u003cli\u003eNot compatible with non-slide style or proprietary valves without modification\u003c\/li\u003e\n  \u003cli\u003eWorks on standard 12V DC RV electrical systems\u003c\/li\u003e\n  \u003cli\u003eRequires emptied tanks during installation for safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe kit ships with a lit switch box that displays valve position (open or closed), the actuator hardware and a full set of installation and operating instructions. Because it mounts to the slide valve, the Auto Drain leaves the existing plumbing intact and reverses to manual use if the electrical system is disabled.\u003c\/p\u003e\n\n\u003cp\u003eWho this is for: RV owners, park managers and retrofit technicians who want a dependable, low-current automatic solution to operate existing 3\" slide waste valves. It’s ideal for users who prefer a clean, fast electric alternative to manual dumping while keeping existing plumbing intact and avoiding complex modifications. Verify your valve style and size before purchasing to ensure compatibility.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Barker 24130 fit my RV valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits conventional 3\" slide waste valves, including Valterra and Bristol models; confirm your valve is a 3\" slide type before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What power does the Auto Drain use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit runs on 12V DC and draws about 200 mA, with a roughly four-second open\/close cycle for the 3\" model.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BARKER","offers":[{"title":"Default Title","offer_id":55170473034071,"sku":"B003VAYMB4","price":182.23,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/barker-24130-auto-drain-front-mounted.jpg?v=1790429732","url":"https:\/\/britishgarage.co.uk\/products\/barker-3-auto-drain-rv-waste-valve-actuator-12v-retrofit-kit-for-valterra-bristol-3-slide-valves-quick-4s-cycle-corrosion-r","provider":"British Garage","version":"1.0","type":"link"}