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Grotek Final Flush – Root Zone Salt Rinse

Grotek Final Flush – Root Zone Salt Rinse

Regular price £12.95
Regular price Sale price £12.95
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Description

A Fast, Thorough End-of-Cycle Salt Strip

Repeated feeding leaves fertiliser salts behind in the growing medium and, over time, absorbed into plant tissue itself. That build-up shows up as a white, powdery residue on the surface of the medium, and left unaddressed it can leave a bitter edge in the finished harvest. Final Flush is a dedicated salt-clearing agent designed specifically to correct that over-feeding and clear the medium during the final stages of the grow, rather than relying on plain water alone.

The difference from a plain-water rinse of the growing medium is that plain water only shifts salts that are already dissolved in the medium. Final Flush contains solubilizers that actively liquify salts that have precipitated out and bonded to the growing medium, pulling them into solution so they can be rinsed away along with the dissolved fraction. That distinction matters most in coco and peat-based substrates, where salts bind more readily than they do in an inert hydro medium.

It's flexible enough to use as routine maintenance mid-grow when salt build-up is suspected, to correct an overfeeding mistake, or as a dedicated end-of-cycle step to clear accumulated fertiliser salts from the medium and root zone, so leftover feed does not mask the natural aroma and flavour of the crop.

  • Dissolves precipitated salts - goes further than plain water by liquifying bonded salt deposits, not just dissolved ones
  • Corrects over-feeding - brings an over-fertilised crop back into balance quickly
  • Improves natural aroma and flavour - clears residual fertiliser taste before the end of flowering
  • Safe mid-cycle or end-of-cycle - can be used as routine maintenance or as a dedicated finishing step
  • Works across grow systems - suited to hydroponics, coco and soil
  • Simple mix-and-run application - no complex dosing schedule required

Technical Specifications

  • Type: salt-clearing flush with solubilisers
  • Dose: 2ml/L (10ml per 5 litres of water)
  • Stage: mid-grow or end of cycle, to clear salt build-up or correct over-feeding
  • Medium: hydroponics, coco and soil
  • Hydroponics: add to pure water in the reservoir and circulate through the system for approximately one hour
  • Soil/coco: apply liberally to the top of the container, allow excess to drain, repeat if needed, then rest one week before resuming a regular feed programme
  • End-of-cycle use: apply over the final 7-10 days of flowering to clear accumulated salts from the medium and root zone
Feed Chart
GROTEK FINAL FLUSH · hydro, coco and soil · mixed into plain water
Medium Per 1 L Per 10 L
Hydroponics (reservoir, circulate about one hour) 2 ml 20 ml
Coco & soil (water through until it drains) 2 ml 20 ml
Note — Grotek's rate is 10 ml per 5 litres of water (2 ml per litre). Mix it into plain water with no other nutrients in the tank; in coco and soil, repeat if needed and rest one week before resuming the regular feed.
Full feed chartGrotek

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