{"product_id":"iws-pro-flexi-tank-with-pipes-pump","title":"IWS Pro FlexiTank with Pipes \u0026 Pump","description":"```html\n\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003eIWS Pro FlexiTank with Pipes \u0026amp; Pump — Complete Flood \u0026amp; Drain Reservoir Kit\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e IWS Pro system users upgrading to automatic watering without the faff of manual top-ups\u003c\/p\u003e\n\n\u003cdiv class=\"gh-our-thoughts\" role=\"note\" aria-label=\"Our thoughts\"\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eOur thoughts\u003c\/strong\u003e\u003cbr\u003e\nIf you're already running an IWS Pro flood and drain setup, this takes the guesswork out of maintaining water levels. It's a complete kit — tank, pump, pipes, the lot — and it assembles in minutes. One less thing to babysit, which is exactly what you want when you're trying to keep things stable.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe IWS Pro FlexiTank with Pipes \u0026amp; Pump is a \u003cstrong\u003ecomplete, ready-to-connect reservoir system\u003c\/strong\u003e designed to integrate seamlessly with your IWS Pro 25mm flood and drain setup. It's a flexible fabric tank that folds flat for storage, supplied with a high-flow pump (3000–4000 litres per hour), irrigation pipework, and all the fittings you need to get it working. In simple terms: automatic water top-ups that actually fit your system, without buying bits piecemeal and hoping they work together.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eAgainst other flood and drain reservoir options, this is \u003cstrong\u003esystem-specific and fully integrated\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete kit approach — pump and pipes included, not sold separately\u003c\/li\u003e\n\u003cli\u003eFaster assembly than rigid plastic tanks (folds flat, sets up in minutes)\u003c\/li\u003e\n\u003cli\u003eHigh-flow pump capacity built in, saving a separate purchase\u003c\/li\u003e\n\u003cli\u003eIWS Pro compatibility is guaranteed; no guessing about fittings\u003c\/li\u003e\n\u003cli\u003eMore compact storage than rigid water butts or tanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you're already committed to IWS Pro, this is the natural choice. If you're running AutoPot or a different system, look elsewhere — this is built for IWS only.\u003c\/p\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003cbr\u003eUnroll the tank, slide the five support legs into the vertical slots in the fabric, and fit the irrigation fittings into the holes at the top. Connect the piping using the elbow connections and markings on the outside. The whole process takes minutes, not hours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConnection to your IWS Pro\u003c\/strong\u003e\u003cbr\u003eTwo drain pipes connect to the MJ-1000 pumps inside your IWS Pro Brain Bucket. One fill pipe connects to the pump inside the FlexiTank. The kit includes everything you need — no adapters to chase down.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperation\u003c\/strong\u003e\u003cbr\u003eOnce connected, the pump automatically tops up your system, keeping water levels stable and reducing manual feeding. This maintains consistent nutrient delivery and helps prevent root-borne issues by keeping oxygen levels steady.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCapacity choice\u003c\/strong\u003e\u003cbr\u003eAvailable in 250L, 400L, 750L, and 1000L. Larger tanks mean fewer manual top-ups and more forgiving EC\/pH drift. Pick based on your grow room size and how often you want to refill.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTank construction:\u003c\/strong\u003e Thick, flexible fabric with zippered lid and five support legs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable capacities:\u003c\/strong\u003e 250L, 400L, 750L, 1000L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump supplied:\u003c\/strong\u003e NJ-3000 water pump (3000 litres per hour) — alternative high-pressure 4000lph pump available depending on stock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe configuration:\u003c\/strong\u003e Two drain pipes (to IWS Pro Brain Bucket), one fill pipe (to tank pump)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFittings:\u003c\/strong\u003e All required irrigation connectors and elbow joints included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Packs flat for easy transport and storage between crops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly time:\u003c\/strong\u003e Approximately 10–15 minutes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e IWS Pro 25mm flood and drain systems only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExisting IWS Pro system users ready to move beyond manual top-ups\u003c\/li\u003e\n\u003cli\u003eGrowers running multiple flood and drain trays who need automated water management\u003c\/li\u003e\n\u003cli\u003eAnyone prioritising quick setup and system-specific reliability over universal compatibility\u003c\/li\u003e\n\u003cli\u003eGrowers who want their nutrient solution kept stable without constant adjustment\u003c\/li\u003e\n\u003cli\u003eFlood and drain operators who've had issues with water level drift mid-cycle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is \u003cstrong\u003enot\u003c\/strong\u003e for AutoPot users, NFT systems, or standalone DWC operations. It's IWS Pro territory only.\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is a no-nonsense upgrade for IWS Pro growers. You get the tank, the pump, and the pipes all matched to work together — no compatibility guessing, no missing adapters halfway through assembly. It does what it's supposed to do: keep your water topped up automatically so you can focus on the actual growing.\u003c\/p\u003e\n\u003cp\u003eIf you're already running IWS Pro and still manually feeding your reservoir, this is worth picking up. It cuts out a job, adds stability, and the complete kit approach means you're not assembling a Frankenstein's monster from three different suppliers. Good time to buy while clearance stock lasts.\u003c\/p\u003e\n\n\u003c\/section\u003e\n```","brand":"IWS","offers":[{"title":"750 Litre","offer_id":47916589220010,"sku":"127080","price":284.99,"currency_code":"GBP","in_stock":false},{"title":"250 Litre","offer_id":47916589252778,"sku":"127065","price":309.99,"currency_code":"GBP","in_stock":true},{"title":"400 Litre","offer_id":47916589285546,"sku":"127070","price":239.99,"currency_code":"GBP","in_stock":true},{"title":"100 Litre","offer_id":47916589318314,"sku":"127001","price":169.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/127065_250_litre_3_d86774cf-d027-49f2-b612-47eeeab05632.jpg?v=1769196732","url":"https:\/\/growershouse.co.uk\/products\/iws-pro-flexi-tank-with-pipes-pump","provider":"Growers House ","version":"1.0","type":"link"}