{"product_id":"iws-flood-drain-pots-stands-and-outers-10-5-litres","title":"IWS Flood \u0026 Drain Pots, Stands and Outers (10.5 Litres)","description":"```html\n\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003eIWS Flood \u0026amp; Drain Pots, Stands and Outers (10.5L) — Modular Hydroponic System for Serious Growers\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers running 6+ plants who want automated feeding, precision control, and yields that actually justify the setup\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\nThis is proper kit that's been doing the job for decades. IWS Flood \u0026amp; Drain systems are known for being some of the best-yielding setups out there, and for good reason. Once it's running, you're not fussing with hand-feeding or worrying about timing — the system handles it. That's the whole point.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe IWS Flood \u0026amp; Drain system is a \u003cstrong\u003emodular active hydroponic solution\u003c\/strong\u003e that automates nutrient delivery to your plants while giving you complete control over feed cycles. Inner pots sit inside outer pots on stands, and when the system floods, nutrient solution rises through the substrate from underneath, saturating the rootzone before draining back to the reservoir. Every flood cycle brings fresh oxygen to the roots — that's where the growth comes from.\u003c\/p\u003e\n\n\u003cp\u003eThis is the system growers choose when hand-feeding stops making sense and they want serious yields without fussing. It scales from 6 pots to 48+ — add containers whenever you're ready to expand.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eThe IWS Flood \u0026amp; Drain sits in the \u003cstrong\u003eactive hydroponic premium segment\u003c\/strong\u003e, competing against passive systems (AutoPot) and continuous-flow designs (NFT).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs AutoPot:\u003c\/strong\u003e IWS will grow faster and harder — you're forcing oxygenated nutrient to the roots on a schedule you control, not waiting for passive wicking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs NFT systems:\u003c\/strong\u003e Works with any growing medium (clay pebbles, coco, mixes) and bigger plants — NFT is better for leafy greens only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs hand-fed buckets:\u003c\/strong\u003e Removes the guesswork, scales easily, and outperforms inconsistent manual feeding every time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia flexibility:\u003c\/strong\u003e Unlike dripper systems (Wilma), this works with clay, coco, or 60\/40 blends without compromise\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSystem setup\u003c\/strong\u003e\u003cbr\u003e\nThe Big Punch inner (10.5L capacity) sits inside the outer pot on the stand. Nutrient solution from your reservoir is pumped into the outer pot via the pipework. As it fills, the substrate inside the inner pot becomes saturated. Once flooded, the solution drains back to the reservoir, refreshing the oxygen in the rootzone.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGrowing media\u003c\/strong\u003e\u003cbr\u003e\nThe Big Punch design works with any medium: clay pebbles, coco coir, or 60\/40 clay and coco blends. Clay pebbles are the classic choice — a 10L pot of dry clay can absorb up to 5L of water, releasing it slowly between floods.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFlood cycle timing\u003c\/strong\u003e\u003cbr\u003e\nStart with 4-6 floods per day during active growth, adjusting based on how quickly the substrate dries between cycles. More frequent floods mean more oxygen hits, faster growth. The beauty of this system is precision — you're not guessing, you're controlling.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlant rotation\u003c\/strong\u003e\u003cbr\u003e\nRotate the inner pot by 45 degrees every 2-3 days to keep roots away from the central tube and ensure even growth across the pot.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eScaling up\u003c\/strong\u003e\u003cbr\u003e\nIf you're running 36+ pots, stick with the Big Punch. For smaller setups mixing clay and coco together, the Culture Inner (6.5L) has sealed sides to prevent substrate fragments blocking the system.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInner pot capacity: \u003cstrong\u003e10.5 litres\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInner pot design: \u003cstrong\u003eBig Punch — straight sides, bottom drainage area, works with any medium\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOuter pot: \u003cstrong\u003eHigh-strength plastic, flood chamber design\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eStand: \u003cstrong\u003eUniversal IWS stand with V-shaped indent for gland connection, sloped surface for drainage\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompatible media: \u003cstrong\u003eClay pebbles, coco coir, 60\/40 clay\/coco blends\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem type: \u003cstrong\u003eActive flood \u0026amp; drain (ebb \u0026amp; flow) hydroponic\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eScalability: \u003cstrong\u003eFully modular — start at 6 pots, expand to 12, 24, 36, 48+ as needed\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho this is for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExperienced growers moving from hand-fed or passive systems to automation and higher yields\u003c\/li\u003e\n\u003cli\u003eCommercial or semi-commercial operations running 12+ plants where consistency matters\u003c\/li\u003e\n\u003cli\u003eGrowers who want precision control over feed timing and nutrient delivery\u003c\/li\u003e\n\u003cli\u003eAnyone who's fed up with daily watering schedules and wants the system to handle it\u003c\/li\u003e\n\u003cli\u003eGrowers committed to maximising yield per pot — IWS systems are known for being among the best-yielding setups out there\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is not entry-level kit — it's for growers who've proven they can manage a system and now want it to work harder for them.\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThe IWS Flood \u0026amp; Drain has been the proven workhorse for serious growers for decades. It's not the cheapest option, but it's built on a simple principle that works: flood the roots with oxygenated nutrient, drain it back, repeat. That cycle delivers growth and yields that passive systems simply can't match.\u003c\/p\u003e\n\n\u003cp\u003eIf you're running enough plants that hand-feeding is becoming a pain, or you're serious about maximising what each pot produces, this is worth the investment. End-of-line stock on this one, so you're getting proper hydroponic kit at a much lower price than usual. Good time to buy while clearance stock lasts.\u003c\/p\u003e\n\n\u003c\/section\u003e\n```","brand":"IWS","offers":[{"title":"Culture Inner","offer_id":47916616974506,"sku":"89245","price":5.99,"currency_code":"GBP","in_stock":true},{"title":"Aqua Inner","offer_id":47916617007274,"sku":"89244","price":5.99,"currency_code":"GBP","in_stock":true},{"title":"IWS Pot Stand","offer_id":47916617040042,"sku":"89264","price":5.99,"currency_code":"GBP","in_stock":false},{"title":"IWS Outer","offer_id":47916617072810,"sku":"89265","price":3.99,"currency_code":"GBP","in_stock":true},{"title":"Punch Pot","offer_id":47916617105578,"sku":"89268","price":3.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/group_shot_1_50636769-e3a8-4cbb-8a46-513ebd288bfd.jpg?v=1769197326","url":"https:\/\/growershouse.co.uk\/products\/iws-flood-drain-pots-stands-and-outers-10-5-litres","provider":"Growers House ","version":"1.0","type":"link"}