{"product_id":"vivosun-flexfeed-4-gallon-dwc-hydroponic-kit-2-4-bucket","title":"Vivosun FlexFeed 4 Gallon DWC Hydroponic Kit | 2 \u0026 4 Bucket","description":"\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch2\u003eVivosun FlexFeed 4 Gallon DWC Hydroponic Kit | 2 \u0026amp; 4 Bucket\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cp\u003eSoil-grown plants spend energy searching for water and nutrients. DIY bucket setups leave you guessing about reservoir levels and hauling buckets to drain them. The Vivosun FlexFeed 4-Gallon DWC Hydroponic System suspends roots in an oxygenated nutrient solution and monitors the reservoir for you. Vivosun rates the system at 30–50% faster growth than soil and up to 25% higher yields.\u003c\/p\u003e\n\u003cp\u003eEach FlexFeed bucket is molded from durable polypropylene and holds 4 gallons (15 L) of nutrient solution, with fill-level markings inside. A built-in air pump drives two 2.4\" air stones per bucket, keeping dissolved oxygen high to help prevent root rot. A gridded maintenance window opens to add water or test pH and EC without lifting the lid. When it's time for the weekly solution change, the built-in water pump drains the reservoir through a 39\" drain pipe at the press of a button.\u003c\/p\u003e\n\u003cp\u003eBoth the 2-bucket and 4-bucket kits include the FlexFeed DWC controller. It connects up to four buckets through 3.5 mm AUX jacks and links to the Vivosun App over 2.4 GHz Wi-Fi. Water level and temperature sensors in every bucket send real-time readings and low-water alerts, so you can top off or adjust before plants are stressed. Each kit also includes seedling baskets and Rapid Rooters, so you can start seeds directly in the system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cstyle\u003e\n  .image-gallery-container{max-width:1240px;margin:20px auto;}\n  .image-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;}\n  .gallery-item{aspect-ratio:1;overflow:hidden;border-radius:8px;}\n  .gallery-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform 0.3s ease;}\n  .gallery-item:hover img{transform:scale(1.05);}\n  @media (max-width:768px){\n    .image-gallery{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;gap:0.75rem;}\n    .gallery-item{flex:0 0 85%;scroll-snap-align:start;}\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"image-gallery-container\"\u003e\n\u003cdiv class=\"image-gallery\"\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_4-Gallon_DWC_Hydroponic_SystemKit_6.jpg?v=1790886339\" alt=\"Vivosun FlexFeed DWC hydroponic system feature overview\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_4-Gallon_DWC_Hydroponic_SystemKit_8.jpg?v=1790886339\" alt=\"Vivosun FlexFeed DWC bucket with smart controller\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_4-Gallon_DWC_Hydroponic_SystemKit_7.jpg?v=1790886339\" alt=\"Vivosun FlexFeed DWC system app monitoring\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"gallery-item\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_4-Gallon_DWC_Hydroponic_SystemKit_5.jpg?v=1790886339\" alt=\"Vivosun FlexFeed DWC buckets set up in a grow tent\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n  .features-grid-container{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;padding:2rem 0;font-family:'Helvetica Neue',Helvetica,Arial,sans-serif;margin:0 auto;max-width:1240px;}\n  .feature-card{background-color:transparent;padding:1.5rem;border-radius:8px;text-align:center;flex:0 1 240px;box-sizing:border-box;}\n\u003c\/style\u003e\n\u003cdiv class=\"features-grid-container\"\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🪣\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e4-Gallon Reservoirs\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eEach 15 L polypropylene bucket has fill-level markings for accurate mixing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e💨\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eDual Air Stones\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eTwo 2.4\" air stones per bucket keep oxygen high to help prevent root rot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e📱\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eWi-Fi App Monitoring\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eWater level and temperature sensors send alerts to the Vivosun App.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🔍\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003eMaintenance Window\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eGridded window opens to add water or test pH and EC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🚰\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003ePush-Button Drain\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eBuilt-in pump and 39\" drain pipe empty the reservoir without lifting buckets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature-card\"\u003e\n\u003cspan style=\"font-size: 2.5em; line-height: 1; color: #2c5530;\"\u003e🎛️\u003c\/span\u003e\n\u003ch5 style=\"font-size: 1.1em; font-weight: bold; color: #333; margin: 0.75rem 0 0.5rem 0;\"\u003e4-Port Smart Controller\u003c\/h5\u003e\n\u003cp style=\"font-size: 0.95em; line-height: 1.6; color: #555; margin: 0;\"\u003eOne controller links up to four buckets through 3.5 mm AUX jacks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e2-Bucket Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2x DWC Hydroponic Buckets\u003c\/li\u003e\n\u003cli\u003e2x Seedling Planting Baskets\u003c\/li\u003e\n\u003cli\u003e4x Planting Baskets\u003c\/li\u003e\n\u003cli\u003e4x Air Stones\u003c\/li\u003e\n\u003cli\u003e4x Rapid Rooters\u003c\/li\u003e\n\u003cli\u003e1x DWC Controller\u003c\/li\u003e\n\u003cli\u003e1x Power Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e4-Bucket Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4x DWC Hydroponic Buckets\u003c\/li\u003e\n\u003cli\u003e4x Seedling Planting Baskets\u003c\/li\u003e\n\u003cli\u003e8x Planting Baskets\u003c\/li\u003e\n\u003cli\u003e8x Air Stones\u003c\/li\u003e\n\u003cli\u003e8x Rapid Rooters\u003c\/li\u003e\n\u003cli\u003e1x DWC Controller\u003c\/li\u003e\n\u003cli\u003e1x Power Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin-bottom: 0;\"\u003eSpecifications\u003c\/h4\u003e\n\u003cstyle\u003e.styled-spec-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid #eee;border-radius:8px;margin-bottom:1em;}.styled-spec-table{width:100%;border-collapse:collapse;}.styled-spec-table thead{background-color:#f8f8f8;}.styled-spec-table th,.styled-spec-table td{padding:12px 15px;text-align:left;vertical-align:top;}.styled-spec-table th{font-weight:bold;color:#333;border-bottom:2px solid #ccc;}.styled-spec-table td{border-bottom:1px solid #eee;}.styled-spec-table tbody td:first-child{font-weight:500;color:#444;}.styled-spec-table tbody tr:last-child td{border-bottom:none;}\u003c\/style\u003e\n\u003cdiv class=\"styled-spec-container\"\u003e\n\u003ctable class=\"styled-spec-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Buckets\u003c\/td\u003e\n\u003ctd\u003e2 or 4 (per selection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Capacity\u003c\/td\u003e\n\u003ctd\u003e4 gal (15 L) per bucket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBucket Dimensions\u003c\/td\u003e\n\u003ctd\u003e17.2 × 17.2 × 8.6 in (43.6 × 43.6 × 21.9 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBucket Material\u003c\/td\u003e\n\u003ctd\u003ePolypropylene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Pump\u003c\/td\u003e\n\u003ctd\u003eDC 5V, 2W, 160 L\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Pump\u003c\/td\u003e\n\u003ctd\u003eDC 5V, 4W, 2 × 2,000 mL\/min, 20 kPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Stones\u003c\/td\u003e\n\u003ctd\u003eØ2.4 in (Ø6 cm), 2 per bucket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain Pipe\u003c\/td\u003e\n\u003ctd\u003e39 in (1 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensors\u003c\/td\u003e\n\u003ctd\u003eWater level and water temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Dimensions\u003c\/td\u003e\n\u003ctd\u003e3.4 × 1.7 × 1.1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Interface\u003c\/td\u003e\n\u003ctd\u003e4 × 3.5 mm AUX jacks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Connectivity\u003c\/td\u003e\n\u003ctd\u003e2.4 GHz Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4\u003eSupport \u0026amp; Manuals\u003c\/h4\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 15px;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_DWC_Hydroponics_Grow_Kit_Manual.pdf?v=1790885887\" rel=\"noopener noreferrer\" style=\"display: inline-flex; align-items: center; background-color: #f7f7f7; border: 1px solid #ddd; border-radius: 8px; padding: 12px 18px; text-decoration: none; color: #333; transition: background-color 0.3s ease, box-shadow 0.3s ease;\" target=\"_blank\"\u003e \u003cspan style=\"font-size: 1.5em; margin-right: 12px;\"\u003e📄\u003c\/span\u003e \u003cspan style=\"font-weight: bold;\"\u003eFlexFeed DWC Hydroponics Grow Kit Manual\u003c\/span\u003e \u003c\/a\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty\u003c\/h4\u003e\n\u003cp\u003eThe Vivosun FlexFeed 4-Gallon DWC Hydroponic System is covered by a 2-year limited manufacturer warranty from the original date of purchase.\u003c\/p\u003e\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eWhat's the difference between the 2-bucket and 4-bucket kits?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe 2-bucket kit grows two plants and the 4-bucket kit grows four, with matching quantities of baskets, air stones, and Rapid Rooters. Both include one DWC controller with four AUX ports and a power adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I drain the reservoir?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eUnclip the drain pipe from the back of the water inlet, secure it in a waterproof container, and press the drain button. To prevent overflow, the pump stops automatically every 2 minutes. Press the button again to keep draining.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow often should I change the nutrient solution?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eVivosun recommends replacing the nutrient solution once a week. Between changes, top off to the maximum fill line whenever the app's low-water alert triggers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow does the app monitoring work?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eEach bucket has a water level sensor and a water temperature sensor that connect to the DWC controller. The controller links to the Vivosun App over Wi-Fi and sends real-time readings and alerts. Note that it requires a 2.4 GHz network.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eHow do I check pH and EC?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eOpen the gridded maintenance window on the bucket lid to test pH and EC or add water, without disturbing the plant. Vivosun's DWC feed chart recommends keeping pH between 5.8 and 6.2.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eCan I start seeds directly in the FlexFeed system?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eYes. Place a germinated seed in a pre-soaked Rapid Rooter, set it in a planting basket inside the seedling basket, and insert it into the bucket. No solution is needed in the reservoir yet. Once the plant has two sets of true leaves and roots through the Rapid Rooter, remove the seedling basket and fill the reservoir with 4 gallons of solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-question\"\u003e\n\u003cspan\u003eIs there a single-bucket version?\u003c\/span\u003e \u003cspan class=\"faq-icon\"\u003e+\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eVivosun offers a single-bucket FlexFeed kit designed specifically for use with the VGrow system. The standalone DWC controller is included only with the 2-bucket and 4-bucket kits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"VIVOSUN","offers":[{"title":"2 Bucket","offer_id":52607851528408,"sku":"WEB-VSI-FFDWC15-2","price":199.99,"currency_code":"USD","in_stock":true},{"title":"4 Bucket","offer_id":52607851561176,"sku":"WEB-VSI-FFDWC15-4","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1383\/1731\/files\/Vivosun_FlexFeed_4-Gallon_DWC_Hydroponic_SystemKit_2.png?v=1790886340","url":"https:\/\/trimleaf.com\/products\/vivosun-flexfeed-4-gallon-dwc-hydroponic-kit-2-4-bucket","provider":"Trimleaf","version":"1.0","type":"link"}