Professors Ultra Flush
Months 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.
Ultra 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.
One 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.
The 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.
Flush out built-up salts and finish the crop clean!
Corrects Nutrient Lockout
Helps plants absorb their feed properly againRicher Aroma and Taste
Encourages terpenoid and essential oil productionFuller Pre-Harvest Swell
Supports final flower size before harvest
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Professors Ultra Flush
Key Highlights
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- Pre-harvest flushing solution for the flowering stage
- Removes built-up nutrient salts
- Frees up locked-out nutrients for better uptake
- Promotes higher terpenoid and essential oil production
- Aims for a smoother, cleaner finish before harvest
- Suitable for hydroponics, coco and soilless systems
- Three uses - routine flowering flush, pre-harvest flush and lockout correction
Directions for Use
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Dilution Rate
- Hydroponics, coco and soilless: 3 ml/L
- Nutrient lockout correction: 3 ml/L
Application
- Shake bottle well before use.
- For regular hydroponic use, add Ultra Flush to the tank at the dilution rate during weeks 1 and 4 of flowering, feed this solution for one day only, then empty the tank and resume normal feeding.
- One week before harvest, mix Ultra Flush at the dilution rate and water the plants daily with this solution through the final week.
- To correct nutrient lockout, mix 30 ml of Ultra Flush in a 10 L bucket and apply the solution directly to the growing medium.
- Wait 48 hours, then resume feeding at half strength for one week before returning to full-strength feeding.
Safety
Store in a cool, dark, frost-free place.
Shipping & Returns
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Check delivery options for the currently selected item and quantity.
Estimate is for this item and quantity only. Final whole-order freight is confirmed at checkout.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@hydrooasis.com.au
If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@hydrooasis.com.au.
Size: 1 L
Visit Us In-Store: 2/322 Hobart Rd, Youngtown TAS