{"product_id":"autopot-47-litre-header-tank-with-lid-and-grommet","title":"AutoPot - 47 Litre Header Tank with Lid and Grommet","description":"```html\n\u003csection class=\"gh-product-listing\"\u003e\n\n\u003ch2\u003eAutoPot 47 Litre Header Tank with Lid and Grommet — Gravity-Fed Nutrient Storage for Hands-Off Growing\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e Growers wanting automatic watering without pumps, timers, or electricity\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 the backbone of the AutoPot system, and it's brilliantly simple. Gravity does the work, the AQUAvalve handles the timing, and you get on with life. No faffing, no power bills, no overwatering disasters. One we recommend constantly for growers who want their system to just work.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe AutoPot 47 Litre Header Tank is a \u003cstrong\u003egravity-fed nutrient reservoir\u003c\/strong\u003e designed to supply nutrient solution to your AutoPot growing system without requiring electricity, pumps, mains pressure, or timers. Simply fill it with mixed nutrients, let gravity do the heavy lifting, and your plants water themselves on demand via the AQUAvalve. It'll feed up to 4 AutoPot 1-pot systems — or up to 6 depending on your configuration — making it ideal for small-to-medium setups where you want the system to run hands-off for weeks at a time.\u003c\/p\u003e\n\n\u003ch3\u003eHow it compares\u003c\/h3\u003e\n\u003cp\u003eThis sits in a different world to pump-based reservoirs and DIY storage solutions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs pump-based systems:\u003c\/strong\u003e No electricity, no timers, no moving parts to fail. Just gravity and the smart valve doing the thinking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs DIY storage bins:\u003c\/strong\u003e Purpose-built for hydroponic use, comes with lid and grommet pre-fitted, designed to prevent algae and protect your nutrient solution properly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs Blumat or wick-based alternatives:\u003c\/strong\u003e Works at larger scale, feeds more plants, integrates seamlessly with the full AutoPot ecosystem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe key difference: AutoPot systems are \u003cstrong\u003ezero waste\u003c\/strong\u003e. Plants use every drop provided. No run-off, no leakage, no water sitting around getting stale. That's genuinely rare in automated irrigation.\u003c\/p\u003e\n\n\u003ch3\u003eUsage guidance\u003c\/h3\u003e\n\u003cp\u003eSetting up the header tank is straightforward, but height and positioning matter.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation basics\u003c\/strong\u003e\u003cbr\u003e\nMount the tank a minimum of 150mm (6 inches) off the floor — this gives gravity enough pressure to feed your plants properly. Connect the 6mm flexi-pipe to the grommet at the tank base. The pipe runs down to your AutoPot system where the AQUAvalve sits. When the valve detects plant roots need water, it opens and lets gravity deliver the solution.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRegular maintenance\u003c\/strong\u003e\u003cbr\u003e\nTop up the tank when nutrient solution drops to roughly one-third remaining. This keeps the pressure consistent and ensures your plants never run dry. A 9mm golf filter is recommended (sold separately) to keep any sediment out of the system — cheap insurance against a blocked valve.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eScaling your system\u003c\/strong\u003e\u003cbr\u003e\nOne 47L tank handles 4 to 6 individual pots comfortably. If you're building bigger, you can stack multiple tanks or move to a larger capacity. The modular design is the whole point — start small, expand without replacing everything.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMixed nutrients\u003c\/strong\u003e\u003cbr\u003e\nUse whatever nutrient schedule suits your plants, but mix and adjust pH before it goes in the tank. Once it's mixed, you're done fertilising for days. No daily fussing, no risk of getting the ratios wrong mid-week.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCapacity: \u003cstrong\u003e47 litres (12.4 gallons)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions: \u003cstrong\u003e375mm wide × 280mm deep × 565mm tall\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes: \u003cstrong\u003eTank body, fitted lid, 6mm top-hat grommet\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterial: \u003cstrong\u003eFood-grade opaque plastic (prevents algae growth)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSystem compatibility: \u003cstrong\u003eFeeds up to 4 AutoPot 1-pot systems; up to 6 with optimal configuration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnection: \u003cstrong\u003e6mm flexi-pipe inlet at tank base\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstallation height: \u003cstrong\u003eMinimum 150mm clearance from floor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptional accessory: \u003cstrong\u003e9mm golf filter recommended (sold separately)\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\u003eFirst-time AutoPot users wanting the core component to get their system running\u003c\/li\u003e\n\u003cli\u003eGrowers tired of hand-watering or managing pump-based systems with electricity costs\u003c\/li\u003e\n\u003cli\u003eSmall greenhouse or indoor garden operators growing vegetables, herbs, or flowering plants\u003c\/li\u003e\n\u003cli\u003eAnyone with limited time who wants a system that can be left unattended for weeks\u003c\/li\u003e\n\u003cli\u003eSustainability-focused growers who want zero water waste and zero power consumption\u003c\/li\u003e\n\u003cli\u003eBudget-conscious growers who don't want to pay for electricity to run irrigation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly well suited to anyone who values \u003cstrong\u003ereliability, simplicity, and genuinely hands-off operation\u003c\/strong\u003e over complexity.\u003c\/p\u003e\n\n\u003ch3\u003eOur take\u003c\/h3\u003e\n\u003cp\u003eThis is the bit that makes AutoPot systems work. It's not glamorous, but it's smart design: gravity, a food-grade tank, and the valve does the thinking. No electricity, no timers, no guesswork. Just set it and walk away.\u003c\/p\u003e\n\u003cp\u003eIf you're running an AutoPot system or thinking about starting one, this tank is worth picking up. Does exactly what it should, day in, day out, and it'll keep doing it for years. Good time to buy while clearance stock lasts.\u003c\/p\u003e\n\n\u003c\/section\u003e\n```","brand":"AUTOPOT","offers":[{"title":"Default Title","offer_id":47916519817386,"sku":"131012","price":17.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0053\/5540\/5400\/files\/131010_autopot_-_47_litre_header_tank_with_lid_and_grommet_1_9873a9b3-bbee-48b1-b8d8-2704e7739728.jpg?v=1769195099","url":"https:\/\/growershouse.co.uk\/products\/autopot-47-litre-header-tank-with-lid-and-grommet","provider":"Growers House ","version":"1.0","type":"link"}