{"product_id":"professors-ultra-flush","title":"Professors Ultra Flush","description":"\u003cp\u003eMonths of feeding through flowering leave their mark on the root zone. Professors Ultra Flush is a pre-harvest flushing solution from Professors Nutrients, made to clear built-up nutrient salts from around the roots, free up nutrients that have become locked out and help the crop finish clean. It's for hydroponic, coco and other soilless systems, and it makes flushing a planned part of flowering instead of an afterthought.\u003c\/p\u003e\u003cp\u003eUltra Flush goes after what every feed leaves behind. In a soilless system your plant takes what it needs from the nutrient solution. The fertiliser salts it doesn't use can slowly build up around the roots and through the medium, and as that residue grows it starts to get in the way of uptake. That's how a plant ends up showing deficiency symptoms while it sits in a perfectly good feed, the condition growers call nutrient lockout. By stripping that excess out of the root zone, Ultra Flush corrects lockout conditions and lets the roots take up nutrients properly again.\u003c\/p\u003e\u003cp\u003eOne bottle covers three jobs. As routine upkeep, Ultra Flush gets a single day in the tank in weeks 1 and 4 of flowering, a regular clear-out that stops salts piling up before normal feeding resumes. Because that flush ends with an emptied tank, it's worth timing those flowering-week flushes to line up with a planned reservoir change. Where lockout has already set in, it's applied straight to the growing medium from a bucket, and the 48-hour pause and week of half-strength feeding that follow give the roots time to recover before full strength returns.\u003c\/p\u003e\u003cp\u003eThe third job is the pre-harvest flush in the last week, and that's where the finish of the crop comes in. Professors Nutrients describe Ultra Flush as a powerful solution that dramatically improves the taste, aroma and quality of the final crop, and they link it to a smoother, cleaner finish and fuller final flowers. They also credit it with higher terpenoid and essential oil production, for richer aroma and flavour, and a stronger pre-harvest swell.\u003c\/p\u003e","brand":"Professors Nutrients","offers":[{"title":"1 L","offer_id":48134192332958,"sku":"9360135000728","price":19.99,"currency_code":"AUD","in_stock":false},{"title":"5 L","offer_id":48134192365726,"sku":"9360135000735","price":55.99,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/5261\/6094\/files\/Professors_Ultra_Flush_1L.png?v=1791673560","url":"https:\/\/www.hydrooasis.com.au\/products\/professors-ultra-flush","provider":"Hydro Oasis","version":"1.0","type":"link"}