{"product_id":"iws-autodrain-system-pro-pipe-large-trays","title":"IWS AutoDrain System — Pro Pipe \/ Large Trays","description":"\u003csection class=\"gh-product-listing\"\u003e\n\u003ch2\u003eIWS AutoDrain System — Pro Pipe \/ Large Trays — Automated Run-to-Waste Drainage for Growing Systems\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Hand-watering growers scaling to 20+ plants who want automatic runoff removal without manual siphoning or wet-vac labour\u003c\/p\u003e\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\u003eIf you're hand-watering more than a handful of plants and you're sick of dealing with runoff manually, this saves you hours. The IWS AutoDrain does one job properly — removes excess water automatically so your roots get oxygen and you get precision. Pro Pipe version pushes 3000 LPH, which matters when you're running 20+ large pots. Worth the investment if scaling is in your plans.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe IWS AutoDrain System is an \u003cstrong\u003eautomated run-to-waste drainage solution\u003c\/strong\u003e that removes excess nutrient solution from your growing trays without you having to touch it. Connected via 25mm flexi pipe to the IWS Run-to-Waste Brain Controller, it uses a float sensor to detect runoff and triggers an internal pump that drains waste automatically. This keeps roots oxygenated, prevents stagnant water problems, and lets you monitor runoff quality to fine-tune your feeding. The Pro Pipe version runs a 3000 LPH pump with larger 25mm outlets — substantially faster than the standard 1000 LPH — making it ideal for larger operations or growers who don't want to wait for drain cycles.\u003c\/p\u003e\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eRun-to-waste automation sits in a specific space between hand-watering and full drip systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs manual runoff removal:\u003c\/strong\u003e Eliminates siphoning, sponging, or wet-vac work — frees up hours per week in larger setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs FloraFlex drip systems:\u003c\/strong\u003e AutoDrain is drainage-only (you hand-water); FloraFlex bundles dripper + drain together. Trade-off: flexibility vs all-in-one convenience\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs gravity drain trays:\u003c\/strong\u003e Adds pump automation so runoff clears reliably without pooling; reduces root rot and disease risk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs recirculating systems:\u003c\/strong\u003e Wastes all runoff rather than recycling it — simpler to manage, easier to dial in nutrients precisely\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn short: this is for growers who've outgrown manual drainage but don't need or want a full drip retrofit.\u003c\/p\u003e\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSystem setup\u003c\/strong\u003e\u003cbr\u003ePlace pots on the large AutoDrain Trays. Hand-water your plants as normal, allowing excess to drain into the tray. The float sensor in the Brain Controller detects runoff and the pump automatically clears it to waste.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScaling to larger operations\u003c\/strong\u003e\u003cbr\u003eOne Brain Controller handles up to 24+ pots with large trays. Add trays and flexi pipe to expand. Pro Pipe (25mm) drains faster than standard (13mm), which matters if you're running multiple trays or hand-watering frequently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRunoff monitoring\u003c\/strong\u003e\u003cbr\u003eThis is where AutoDrain earns its place. Test EC and pH of the runoff to see exactly what your roots are seeing. Adjust your feed strength based on what's coming out, not guessing. You can safely achieve 20–30% runoff without pooling issues.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrowing media\u003c\/strong\u003e\u003cbr\u003eWorks with any inert medium: coco coir, rockwool, clay pebbles, perlite, or blends. Not suitable for soil-based growing (gravity-drain is better there).\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTrays: \u003cstrong\u003eLarge AutoDrain Trays (approximately 37.5cm × 37.5cm × 11cm), accommodate 15L+ containers\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePiping: \u003cstrong\u003e25mm internal diameter IWS Flexi Pipe (Pro version)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eFittings: \u003cstrong\u003eIWS 25mm connectors, leak-resistant seals\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePump capacity: \u003cstrong\u003e3000 LPH (Pro model Brain Controller, sold separately)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eControl mechanism: \u003cstrong\u003eFloat sensor triggers pump on runoff detection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem scaling: \u003cstrong\u003eSingle Brain Controller supports 24+ pots depending on tray configuration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eModular design: \u003cstrong\u003eAdd or remove trays without system rebuild\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHand-watering growers with 20+ plants tired of manual runoff removal\u003c\/li\u003e\n\u003cli\u003eMedium-to-large indoor cultivators scaling beyond hobby setups\u003c\/li\u003e\n\u003cli\u003eGrowers wanting to monitor and fine-tune runoff without recirculating complexity\u003c\/li\u003e\n\u003cli\u003eAnyone looking to prevent root rot and disease by keeping roots oxygenated and out of stagnant water\u003c\/li\u003e\n\u003cli\u003eEstablished operations wanting to add automation without a full dripper system retrofit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is solid kit for growers who've hit the manual labour ceiling. AutoDrain removes a real pain point — the runoff work that kills productivity in medium-sized operations. The Pro Pipe version is worth the extra if you're running 20+ pots or hand-watering heavily; the 3000 LPH pump clears faster and scales more reliably than standard.\u003c\/p\u003e\n\u003cp\u003eNot essential for small hobby setups, but genuinely worthwhile once you hit 15–20 plants. Good time to invest while stock lasts — this is the kind of system that pays for itself in time saved.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"IWS","offers":[{"title":"4-Pot","offer_id":47915993661610,"sku":"31843","price":324.99,"currency_code":"GBP","in_stock":true},{"title":"8-Pot","offer_id":47915993694378,"sku":"31859","price":409.99,"currency_code":"GBP","in_stock":true},{"title":"12-Pot","offer_id":47915993727146,"sku":"31811","price":546.99,"currency_code":"GBP","in_stock":true},{"title":"16-Pot","offer_id":47915993759914,"sku":"31815","price":620.99,"currency_code":"GBP","in_stock":true},{"title":"20-Pot","offer_id":47915993792682,"sku":"31819","price":692.99,"currency_code":"GBP","in_stock":true},{"title":"24-Pot","offer_id":47915993825450,"sku":"31823","price":746.99,"currency_code":"GBP","in_stock":true},{"title":"28-Pot","offer_id":47915993858218,"sku":"31827","price":839.99,"currency_code":"GBP","in_stock":true},{"title":"32-Pot","offer_id":47915993890986,"sku":"31831","price":953.99,"currency_code":"GBP","in_stock":true},{"title":"36-Pot","offer_id":47915993923754,"sku":"31835","price":1005.99,"currency_code":"GBP","in_stock":true},{"title":"40-Pot","offer_id":47915993956522,"sku":"31847","price":1138.99,"currency_code":"GBP","in_stock":true},{"title":"44-Pot","offer_id":47915993989290,"sku":"31851","price":1212.99,"currency_code":"GBP","in_stock":true},{"title":"48-Pot","offer_id":47915994022058,"sku":"31855","price":1285.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/IWSAutoDrain.jpg?v=1769185621","url":"https:\/\/growershouse.co.uk\/products\/iws-autodrain-system-pro-pipe-large-trays","provider":"Growers House ","version":"1.0","type":"link"}