• Flairform StopBloc
SKU: FFStopBloc1litre

Flairform StopBloc

FLAIRFORM STOPBLOC prevents pipe blockages in irrigation (fertigation) systems resisting the formation of nutrient deposits in feed-lines, sprayers, drippers, pumps and filters.

StopBloc also helps prevent build-up of nutrient deposits at the root zone and is compatible with all types of nutrients / fertilizers, systems and substrates.  Use during vegetative & flowering.  For use in hydroponics, soil or coco dose rate 0.2ml/L (0.8ml/Gal)


When to Use:  Seed to harvest
Dosage: 0.2ml/L (0.8ml/Gal)
Substrates: Hydro / Coco / Soil
Bottle Size: 250ml


The feed circuit, especially restrictive feed outlets like drippers, can become blocked with salt build-up, dirt, algae, root growth and medium. To minimize this problem:

  • Employ a filter on the inlet to the nutrient pump. Also, in recirculating systems, install a filter in the return line. Ensure filters have a large surface area. This will minimize how frequently they need to be cleaned
  • Position plants to avoid roots being drawn into drain outlets
  • Maintain nutrient pH well below 6.5 to help prevent salt precipitation (particularly calcium sulfate)
  • Routinely disinfect the nutrient solution to prevent the build-up of algae and slimes
  • Ensure nutrients are fully soluble
  • Avoid using water that has high “hardness” levels
  • Use a regular maintenance schedule. Routine ‘discarding’ and ‘flushing’ will help prevent the build-up of solids such as insoluble salts, algae and plant debris. Between crops it is useful to perform a chemical flush to remove insoluble precipitates


Size guide


SKU: FFStopBloc1litre Categories: , ,