{"product_id":"self-bailer-valve","title":"Self Bailer Valve","description":"\u003cp style=\"text-align: left;\"\u003eThe Self Bailer Valve (SBV) set turns the fixed drain holes in a \u003ca href=\"\/products\/viking-evo-self-bailer\"\u003eViking EVO\u003c\/a\u003e floor into scupper valves you can open or close yourself. Close them and the floor seals, so water stays out of the hull on flat stretches and cold crossings. Open them and the boat drains continuously the way a self-bailer should.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eEvery scupper sits at the front of the boat, within arm’s reach, so switching between the two is a matter of flipping a cap rather than pulling over to the bank. Each cap is tethered to a webbing strip on the floor, so it stays with the boat when it is open. The set ships as a DIY retrofit kit for the \u003ca href=\"\/products\/viking-evo-self-bailer\"\u003eViking EVO\u003c\/a\u003e and the tandem \u003ca href=\"\/products\/viking-evo-x2-tandem-self-bailer-packraft\"\u003eViking EVO X2\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"margin: 20px 0;\"\u003e\u003cimg loading=\"lazy\" alt=\"Three scupper valves fitted to the front floor of a Viking EVO packraft, two caps open and one closed\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/06\/SBV-7.webp\" style=\"width: 100%; height: auto; border-radius: 15px;\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"row fin-use-img p-15\" style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\n\u003cdiv style=\"flex: 1 1 45%;\"\u003e\u003cimg loading=\"lazy\" alt=\"Scupper valve caps closed on the Viking EVO floor, sealing the drain holes\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/06\/SBV-8.webp\" style=\"width: 100%; border-radius: 15px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 45%;\"\u003e\u003cimg loading=\"lazy\" alt=\"Row of scupper valves in the cockpit floor of a Viking EVO X2 tandem packraft\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV-X2-3.webp\" style=\"width: 100%; border-radius: 15px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/z6Tqo9DQYwI?si=kKPGjYeUFPiqRCOs\" title=\"YouTube video player\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhich Set Do I Need?\u003c\/h3\u003e\n\u003cdiv class=\"product-dimension-table\"\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" dir=\"ltr\" style=\"width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 30%;\"\u003eYour packraft\u003c\/td\u003e\n\u003ctd style=\"width: 50%;\"\u003e\u003cb\u003eRetrofit set\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20%;\"\u003e\u003cb\u003eScupper valves\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViking EVO\u003c\/td\u003e\n\u003ctd\u003eScupper Valves DIY Retrofit Set\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViking EVO X2\u003c\/td\u003e\n\u003ctd\u003eFront Scupper Valves DIY Retrofit Set\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViking EVO X2\u003c\/td\u003e\n\u003ctd\u003eRear Scupper Valves DIY Retrofit Set\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-style: italic; font-size: 0.9em; color: #666; margin-top: 8px;\"\u003eThe Viking EVO X2 front and rear sets are ordered separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; margin: 20px 0;\"\u003e\n\u003cdiv style=\"flex: 1 1 30%; text-align: center;\"\u003e\n\u003cimg loading=\"lazy\" alt=\"Viking EVO Scupper Valves DIY Retrofit Set with three caps and three flange rings\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV07-2.webp\" style=\"width: 100%; height: auto;\"\u003e\n\u003cp style=\"margin-top: 10px; font-weight: bold;\"\u003eViking EVO\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 30%; text-align: center;\"\u003e\n\u003cimg loading=\"lazy\" alt=\"Viking EVO X2 Front Scupper Valves DIY Retrofit Set with two caps and two flange rings\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV07-4.webp\" style=\"width: 100%; height: auto;\"\u003e\n\u003cp style=\"margin-top: 10px; font-weight: bold;\"\u003eViking EVO X2 — front\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 30%; text-align: center;\"\u003e\n\u003cimg loading=\"lazy\" alt=\"Viking EVO X2 Rear Scupper Valves DIY Retrofit Set with four caps and four flange rings\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV07-6.webp\" style=\"width: 100%; height: auto;\"\u003e\n\u003cp style=\"margin-top: 10px; font-weight: bold;\"\u003eViking EVO X2 — rear\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eScupper Positions\u003c\/h3\u003e\n\u003cdiv style=\"margin: 20px 0; text-align: center;\"\u003e\n\u003cimg loading=\"lazy\" alt=\"Viking EVO diagram showing the scupper valve position in the front floor\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV-SVG-1.svg\" style=\"width: 100%; height: auto;\"\u003e\n\u003cp style=\"margin-top: 10px; font-weight: bold;\"\u003eViking EVO\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin: 20px 0; text-align: center;\"\u003e\n\u003cimg loading=\"lazy\" alt=\"Viking EVO X2 diagram showing the front scupper and rear scupper valve positions\" src=\"https:\/\/www.mrsraft.com\/wp-content\/uploads\/2026\/07\/SBV-SVG-2.svg\" style=\"width: 100%; height: auto;\"\u003e\n\u003cp style=\"margin-top: 10px; font-weight: bold;\"\u003eViking EVO X2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is a scupper valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA scupper is a drain hole through the floor of a self-bailing boat. A scupper valve adds a sealing cap over that hole, so the paddler decides whether it drains or stays shut — open for whitewater, closed for flat or cold water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich packrafts does the Self Bailer Valve set fit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/products\/viking-evo-self-bailer\"\u003eViking EVO\u003c\/a\u003e and the \u003ca href=\"\/products\/viking-evo-x2-tandem-self-bailer-packraft\"\u003eViking EVO X2\u003c\/a\u003e only. It is not a fit for the standard \u003ca href=\"\/products\/white-water-packraft-viking\"\u003eViking Self Bailer\u003c\/a\u003e, which uses a different floor and drainage layout, and it does not apply to sealed-deck packrafts such as the \u003ca href=\"\/products\/white-water-packraft-alligator-2s-pro\"\u003eAlligator 2S Pro\u003c\/a\u003e, which keep water out with a spraydeck rather than draining it through the floor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I install the set myself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes — it is supplied as a DIY retrofit set, which is what the kit is designed for. Follow the instruction sheet supplied with the set. If you would rather not fit it yourself, contact us before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I remove the baffle beneath the scupper holes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOnly if the boat is used primarily for creeking. Removing the baffle significantly improves drainage efficiency, but the change is permanent — it suits boats that live in steep, continuously wet water rather than mixed flat-water days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I keep the valves sealing well?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRinse the valves and the floor around them with clean freshwater after silty or salty water, and wipe sand off the flange and the underside of the cap before closing a valve. Grit left in the valve seat is the usual reason a closed cap starts to seep.\u003c\/p\u003e","brand":"MRS","offers":[{"title":"Viking","offer_id":46679734649029,"sku":null,"price":50.0,"currency_code":"USD","in_stock":false},{"title":"Viking Evo","offer_id":46679734616261,"sku":"3-MR-SBV-DY-E","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Viking Evo X2","offer_id":46679734681797,"sku":"3-MR-SBV-DY-EX","price":100.0,"currency_code":"USD","in_stock":true},{"title":"Barracuda R2 Pro Self Bailer","offer_id":46679734714565,"sku":null,"price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/9380\/9093\/files\/SBV-1.webp?v=1786308942","url":"https:\/\/www.microrafting.com\/products\/self-bailer-valve","provider":"Micro Rafting","version":"1.0","type":"link"}