{"product_id":"dankoff-solar-slowpump-surface-pump","title":"Dankoff Solar SlowPump Surface Pump","description":"\u003cp\u003e\u003cspan\u003eThe Dankoff Solar SlowPump is a proven low‑power surface pump engineered for long‑distance, high‑lift water delivery in off‑grid environments. First introduced in 1983, it remains one of the most reliable solar‑direct pumping solutions available, with thousands of installations worldwide. Designed for shallow water sources and capable of pushing water up to 450 vertical feet, the SlowPump delivers dependable performance with extremely low energy requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt with a forged brass rotary vane mechanism and stainless steel\/carbon‑graphite internals, the SlowPump is designed for long service life, easy maintenance, and consistent operation in remote systems. Wear parts typically last 5–10 years, with an overall life expectancy of 15–20 years before rebuild.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLow‑power solar pump designed for long‑distance, high‑lift water delivery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eProven design with nearly 40 years of field use\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRotary vane positive‑displacement mechanism for consistent flow\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eForged brass, carbon‑graphite, and stainless steel construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNSF‑approved for drinking water applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHandles seawater and dissolved minerals\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSurvives most freeze conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePermanent‑magnet DC motor (AC models use low‑surge PM motor)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eExtremely low energy consumption for solar‑direct systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWear parts last 5–10 years; 15–20 year overall life expectancy\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDetailed installation and service manual included\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eFiltration Requirement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cspan\u003e“This pump cannot tolerate dirt, so water must be filtered clear.”\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cspan\u003eA proper filtration system is \u003cstrong\u003emandatory\u003c\/strong\u003e. Failure to use approved filtration \u003cstrong\u003evoids the warranty\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf the water source is very dirty, consider a dirt‑tolerant model such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSolarForce\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSunCentric\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSolaram\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eSolar‑Direct (PV‑Direct) Operation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePV array must meet the \u003cstrong\u003ePV Watts\u003c\/strong\u003e rating listed for each model\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUsing the \u003cstrong\u003eDankoff DC Controller\u003c\/strong\u003e increases annual performance by ~30%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eController is required for reliable startup in low‑light conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eMechanical Characteristics\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003e1300 Series (Models 1303–1322)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDimensions: 5 3\/4\" × 17 3\/8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFittings: 1\/2\" female\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 12 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e1400 Series (Models 1403–1408)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDimensions: 6 1\/2\" × 18 3\/4\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFittings: 1\/2\" female\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 25 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e2500 Series (Models 2505–2507)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDimensions: 5 3\/4\" × 17 3\/8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFittings: 3\/4\" male\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 13 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e2600 Series (Models 2605–2607)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDimensions: 6 1\/2\" × 18 3\/4\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFittings: 3\/4\" male\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eWeight: 29 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003ePerformance Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe SlowPump is available in multiple model numbers, each optimized for different lift heights and flow rates. Performance varies by:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTotal lift (vertical + friction loss)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eModel number (1300, 1400, 2500, 2600 series)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVoltage (12V, 24V, 48V DC; 115V AC)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePV array wattage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGeneral Performance Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFlow ranges from \u003cstrong\u003e0.25–6.2 GPM\u003c\/strong\u003e depending on model and lift\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMaximum lift: \u003cstrong\u003eup to ~450 ft\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePV wattage requirements: \u003cstrong\u003e40W to 675W\u003c\/strong\u003e depending on model and lift\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAC models available for inverted systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e(Your Shopify product page will not list every table row — customers choose the model based on your variant selector.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eVoltage Options (Variants)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e12V DC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e24V DC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e48V DC\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e115V AC\u003c\/strong\u003e (select models)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eDimensions \u0026amp; Weight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVaries by model series (see Mechanical Characteristics above)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1‑year manufacturer warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPP Solar","offers":[{"title":"2507 \/ 12V","offer_id":46569333194913,"sku":"2507-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2507 \/ 24V","offer_id":46569518071969,"sku":"2507-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2507 \/ 48V","offer_id":46569518104737,"sku":"2507-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2505 \/ 12V","offer_id":46569518137505,"sku":"2505-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2505 \/ 24V","offer_id":46569518170273,"sku":"2505-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2505 \/ 48V","offer_id":46569518203041,"sku":"2505-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1303 \/ 12V","offer_id":46569518235809,"sku":"1303-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1303 \/ 24V","offer_id":46569518268577,"sku":"1303-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1303 \/ 48V","offer_id":46569518301345,"sku":"1303-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1304 \/ 12V","offer_id":46569518334113,"sku":"1304-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1304 \/ 24V","offer_id":46569518366881,"sku":"1304-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1304 \/ 48V","offer_id":46569518399649,"sku":"1304-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1308 \/ 12V","offer_id":46569518432417,"sku":"1308-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1308 \/ 24V","offer_id":46569518465185,"sku":"1308-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1308 \/ 48V","offer_id":46569518497953,"sku":"1308-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1310 \/ 12V","offer_id":46569518530721,"sku":"1310-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1310 \/ 24V","offer_id":46569518563489,"sku":"1310-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1310 \/ 48V","offer_id":46569518596257,"sku":"1310-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1322 \/ 12V","offer_id":46569518629025,"sku":"1322-12","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1322 \/ 24V","offer_id":46569518661793,"sku":"1322-24","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"1322 \/ 48V","offer_id":46569518694561,"sku":"1322-48","price":1148.95,"currency_code":"USD","in_stock":true},{"title":"2607 \/ 12V","offer_id":46569518727329,"sku":"2607-12","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"2607 \/ 24V","offer_id":46569518760097,"sku":"2607-24","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"2607 \/ 48V","offer_id":46569518792865,"sku":"2607-48","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"2605 \/ 12V","offer_id":46569518825633,"sku":"2605-12","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"2605 \/ 24V","offer_id":46569518858401,"sku":"2605-24","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"2605 \/ 48V","offer_id":46569518891169,"sku":"2605-48","price":2148.95,"currency_code":"USD","in_stock":true},{"title":"1403 \/ 12V","offer_id":46569518923937,"sku":"1403-12","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1403 \/ 24V","offer_id":46569518956705,"sku":"1403-24","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1403 \/ 48V","offer_id":46569518989473,"sku":"1403-48","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1404 \/ 12V","offer_id":46569519022241,"sku":"1404-12","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1404 \/ 24V","offer_id":46569519055009,"sku":"1404-24","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1404 \/ 48V","offer_id":46569519087777,"sku":"1404-48","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1408 \/ 12V","offer_id":46569519120545,"sku":"1408-12","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1408 \/ 24V","offer_id":46569519153313,"sku":"1408-24","price":1698.95,"currency_code":"USD","in_stock":true},{"title":"1408 \/ 48V","offer_id":46569519186081,"sku":"1408-48","price":1698.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5065\/7953\/files\/DankoffSlowPump.png?v=1782083553","url":"https:\/\/milesoffgrid.com\/products\/dankoff-solar-slowpump-surface-pump","provider":"Miles Off Grid","version":"1.0","type":"link"}