{"product_id":"green-man-fd-flood-and-drain-system","title":"Green Man FD Flood and Drain System – Hydroponic Grow Kit","description":"\u003ch2\u003eGrow in Coco or Soil With Fully Automatic Flood and Drain\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGreen Man FD Flood and Drain System\u003c\/strong\u003e from Green Air Products UK is built for growing in a medium rather than in water. Each \u003cstrong\u003eFD pot\u003c\/strong\u003e has a \u003cstrong\u003esubstrate tray\u003c\/strong\u003e in its base, so it can be filled with \u003cstrong\u003ecoco, soil or your own mix\u003c\/strong\u003e and still be fed automatically. The \u003cstrong\u003eGreen Man Brain Controller\u003c\/strong\u003e floods every pot from one central reservoir on its timer; the medium soaks up the solution by capillary action and holds it ready for the roots, then the pots drain back so the solution is mixed and sent out again on the next cycle. Feeding little and often like this keeps roots insulated in the medium and avoids the dry-back swings and patchy \u003cstrong\u003enutrient uptake\u003c\/strong\u003e of hand-watering, while each drain draws fresh air back into the root zone. Because every pot shares one tank, EC, pH and temperature are checked in one place. Choose \u003cstrong\u003e2 to 24 pots\u003c\/strong\u003e, with a rigid tank or a collapsible FlexiTank.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen Man FD pots\u003c\/strong\u003e (2 to 24 by option), each with a \u003cstrong\u003esubstrate tray\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen Man Brain Controller\u003c\/strong\u003e with timer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir\u003c\/strong\u003e: rigid tank or FlexiTank (by option), fitted with a \u003cstrong\u003eSicce Syncra Silent 1,350 L\/h\u003c\/strong\u003e pump and Green Man connection plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIceline pipe\u003c\/strong\u003e and fittings to connect the pots\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic feeding in a medium\u003c\/strong\u003e: coco, soil or a substrate mix in every pot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapillary feeding\u003c\/strong\u003e: the medium holds solution between floods for steady moisture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne shared reservoir\u003c\/strong\u003e: drained solution is mixed and reused, with one place to check EC, pH and temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh air at the roots\u003c\/strong\u003e as each pot drains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid tank or FlexiTank\u003c\/strong\u003e to suit the space\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable\u003c\/strong\u003e with Green Man Flood \u0026amp; Drain pot packages\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSet the pots out on a level floor and seat a \u003cstrong\u003esubstrate tray\u003c\/strong\u003e in the base of each\u003c\/li\u003e\n\u003cli\u003eAdd a layer of clay pebbles, then fill with \u003cstrong\u003ecoco, soil or your chosen mix\u003c\/strong\u003e and plant\u003c\/li\u003e\n\u003cli\u003eConnect each pot to the \u003cstrong\u003eBrain Controller\u003c\/strong\u003e with the Iceline pipe\u003c\/li\u003e\n\u003cli\u003eSite the reservoir, connect its fill and drain lines and plug the pump lead into the Brain\u003c\/li\u003e\n\u003cli\u003eProgramme the flood times on the Brain's timer to suit the medium and the size of the plants\u003c\/li\u003e\n\u003cli\u003eCheck \u003cstrong\u003eEC, pH and temperature\u003c\/strong\u003e at the reservoir and refresh the solution regularly\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"hcs-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Green Man (Green Air Products UK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e Flood and drain (ebb and flow) in a growing medium, recirculating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e Green Man Brain Controller with timer, 12 month manufacturer warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir pump:\u003c\/strong\u003e Sicce Syncra Silent, 1,350 L\/h, Green Man connection plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir capacity:\u003c\/strong\u003e 100L for 2 and 3 pots, 250L for 4, 6 and 8 pots, 350L for 12 pots (not published for 16 and 24 pots)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReservoir type:\u003c\/strong\u003e rigid tank, or a collapsible Green Man FlexiTank in its place (by option)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24 pot:\u003c\/strong\u003e FlexiTank only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe:\u003c\/strong\u003e Iceline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable media:\u003c\/strong\u003e Coco, soil or substrate mixes over a clay pebble layer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cdiv class=\"hcs-faq\"\u003e\n\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eRigid tank or FlexiTank?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eBoth run the same system with the same Sicce pump and Green Man plug. The FlexiTank is collapsible, lighter to move and folds flat when not in use; the rigid tank stands on its own.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eCan I add pots later?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eYes. Green Man Flood \u0026amp; Drain Kit pot packages add 2, 3 or 6 pots to an FD system; keep the reservoir big enough for the extra pots.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhat is the difference between the FD and the Combi system?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eThe FD system grows in coco, soil or a substrate mix flooded from below. The Combi system grows in clay pebbles, with a reservoir in each pot aerated by an airstone and a drip ring feeding from above.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #e6e6e6;border-radius:8px;padding:12px 16px;margin:0 0 8px;\"\u003e\u003csummary style=\"cursor:pointer;font-weight:600;\"\u003eWhich medium should I use?\u003c\/summary\u003e\u003cp style=\"margin:10px 0 0;\"\u003eAny free-draining coco, soil or substrate mix. A layer of clay pebbles in the base helps drainage, and the substrate tray keeps the medium off the floor of the pot.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\u003ch3\u003eWorks Well With\u003c\/h3\u003e\u003cdiv class=\"hcs-related\" style=\"display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 0;\"\u003e\n\u003ca href=\"\/products\/green-man-flood-drain-kit-pot-package\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/green-man-flood-drain-kit-pot-package-2-pot-package-1.jpg?v=1790229568\u0026amp;width=160\" alt=\"Green Man Flood \u0026amp; Drain Kit\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGreen Man Flood \u0026amp; Drain Kit\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eAdd FD pots to your system\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/green-man-brain-controller\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/green-man-brain-controller-default-title-1.jpg?v=1790169595\u0026amp;width=160\" alt=\"Green Man Brain Controller\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGreen Man Brain Controller\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eSpare Brain Controller\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/green-man-reservoir\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/green-man-reservoir-100l-1.jpg?v=1790229572\u0026amp;width=160\" alt=\"Green Man Reservoir\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eGreen Man Reservoir\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eSpare reservoir with pump\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003ca href=\"\/products\/bluelab-combi-meter\" style=\"flex:1 1 240px;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e6e6e6;border-radius:8px;text-decoration:none;color:inherit;background:#fff;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/Bluelab-combo--medium_landscape.jpg?v=1746905604\u0026amp;width=160\" alt=\"Bluelab Combo Meter\" width=\"64\" height=\"64\" loading=\"lazy\" style=\"width:64px;height:64px;object-fit:contain;flex:none;\"\u003e\u003cspan style=\"font-size:14px;line-height:1.4;\"\u003e\u003cstrong style=\"display:block;\"\u003eBluelab Combo Meter\u003c\/strong\u003e\u003cspan style=\"color:#008d37;\"\u003eCheck pH and EC in the tank\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Green Man","offers":[{"title":"2 Pot \/ Rigid Tank","offer_id":53929927180554,"sku":"HYD-GRAN-008-01","price":433.6,"currency_code":"GBP","in_stock":false},{"title":"2 Pot \/ FlexiTank","offer_id":53929927213322,"sku":"HYD-GRAN-008-02","price":433.6,"currency_code":"GBP","in_stock":false},{"title":"3 Pot \/ Rigid Tank","offer_id":53929927246090,"sku":"HYD-GRAN-008-03","price":476.99,"currency_code":"GBP","in_stock":false},{"title":"3 Pot \/ FlexiTank","offer_id":53929927278858,"sku":"HYD-GRAN-008-04","price":476.99,"currency_code":"GBP","in_stock":false},{"title":"4 Pot \/ Rigid Tank","offer_id":53929927311626,"sku":"HYD-GRAN-008-05","price":540.85,"currency_code":"GBP","in_stock":false},{"title":"4 Pot \/ FlexiTank","offer_id":53929927344394,"sku":"HYD-GRAN-008-06","price":533.4,"currency_code":"GBP","in_stock":false},{"title":"6 Pot \/ Rigid Tank","offer_id":53929927377162,"sku":"HYD-GRAN-008-07","price":619.7,"currency_code":"GBP","in_stock":false},{"title":"6 Pot \/ FlexiTank","offer_id":53929927409930,"sku":"HYD-GRAN-008-08","price":612.3,"currency_code":"GBP","in_stock":false},{"title":"8 Pot \/ Rigid Tank","offer_id":53929927442698,"sku":"HYD-GRAN-008-09","price":711.7,"currency_code":"GBP","in_stock":false},{"title":"8 Pot \/ FlexiTank","offer_id":53929927475466,"sku":"HYD-GRAN-008-10","price":704.25,"currency_code":"GBP","in_stock":false},{"title":"12 Pot \/ Rigid Tank","offer_id":53929927508234,"sku":"HYD-GRAN-008-11","price":882.49,"currency_code":"GBP","in_stock":false},{"title":"12 Pot \/ FlexiTank","offer_id":53929927541002,"sku":"HYD-GRAN-008-12","price":875.1,"currency_code":"GBP","in_stock":false},{"title":"16 Pot \/ Rigid Tank","offer_id":53929927573770,"sku":"HYD-GRAN-008-13","price":1087.4,"currency_code":"GBP","in_stock":false},{"title":"16 Pot \/ FlexiTank","offer_id":53929927606538,"sku":"HYD-GRAN-008-14","price":1095.65,"currency_code":"GBP","in_stock":false},{"title":"24 Pot \/ FlexiTank","offer_id":53929927639306,"sku":"HYD-GRAN-008-15","price":1639.95,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/green-man-fd-flood-and-drain-system-2-pot-rigid-tank-1.jpg?v=1792262945","url":"https:\/\/hydrocropshop.co.uk\/products\/green-man-fd-flood-and-drain-system","provider":"Hydro Crop Shop","version":"1.0","type":"link"}