{"product_id":"boyu-s-series-adjustable-air-pump","title":"BOYU S-4000B Adjustable Air Pump – For DWC Hydroponics","description":"\u003ch2\u003eFour Outlets of Adjustable Air From One Compact Pump\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eBOYU S-4000B Adjustable Air Pump\u003c\/strong\u003e delivers up to \u003cstrong\u003e768 litres of air per hour\u003c\/strong\u003e through \u003cstrong\u003efour 4mm outlets\u003c\/strong\u003e, with a dial on top to turn the output up or down. It is quiet running and frugal on power at \u003cstrong\u003e9W\u003c\/strong\u003e, which makes it a practical all-rounder for oxygenating a nutrient reservoir, running air stones in several DWC buckets or keeping a propagation tank fresh.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e768 L\/h output\u003c\/strong\u003e split across \u003cstrong\u003efour outlets\u003c\/strong\u003e - feed several air stones from one pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable airflow\u003c\/strong\u003e - dial it back for seedlings, open it up as root mass grows\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet running\u003c\/strong\u003e for tents and rooms in shared spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow energy use\u003c\/strong\u003e - just 9W, running around the clock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 4mm spigots\u003c\/strong\u003e that take common airline tubing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStagnant Reservoirs and Struggling Roots\u003c\/h3\u003e\u003cp\u003eStill, warm nutrient solution loses dissolved oxygen quickly. Roots respond by browning off, poor nutrient uptake sets in and growth slows even though the feed is right. Constant aeration from a correctly sized pump keeps oxygen levels up and water moving, which is the cheapest insurance a hydroponic or DWC system can have.\u003c\/p\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace\u003c\/strong\u003e the pump on a level surface \u003cstrong\u003eabove the water line\u003c\/strong\u003e, or fit a non-return valve, so solution cannot siphon back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect\u003c\/strong\u003e 4mm airline from each outlet to an air stone in the reservoir or buckets\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust\u003c\/strong\u003e the dial for a steady, even stream of bubbles from every stone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRun it continuously\u003c\/strong\u003e - reservoirs need oxygen day and night\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e BOYU\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e S-4000B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir output:\u003c\/strong\u003e 768 L\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlets:\u003c\/strong\u003e 4 x 4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 9W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e adjustable airflow dial\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"BOYU","offers":[{"title":"768 L\/h (S-4000B)","offer_id":53803795022090,"sku":"HYD-BOYU-003-01","price":22.65,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/boyu-s-series-adjustable-air-pump-768-l-h-s-4000b-1.jpg?v=1790229376","url":"https:\/\/hydrocropshop.co.uk\/products\/boyu-s-series-adjustable-air-pump","provider":"Hydro Crop Shop","version":"1.0","type":"link"}