In StockCanna D Block
£22.45
Online price · 10% online discount included
Collection only
This item is too big for our parcel service, so we don't sell it for delivery on the website. Collect it from our Bristol shop, or ask us for a delivery price.
Seen it cheaper? Ask for a price match
Found it for less at Amazon or another UK shop? Send us the link. If we agree, we beat their price by 2% on our website for 24 hours and email you to say so. Not eBay listings.
Description
Canna D Block is a nutrient additive designed to prevent the build-up of salts within irrigation lines and spray heads. It should be added right from the start of the growing cycle at 10ml per 100ml of nutrient solution - if used like this then you will never have to worry about blockages ever again.
Add to the nutrient solution at 10ml per 100 litres. Between cycles, you can use it to flush the entire system, for best results when doing this lower the pH to 5.2 and run for several hours.
Canna D Block will also help prevent the build-up of precipitate in nutrient tanks where the solution is standing for a long time.
Key facts
| Type | Anti-blocking additive for irrigation systems |
|---|---|
| What it does | Stops salts building up in irrigation lines, drippers and spray heads, and in standing nutrient tanks |
| Dose | At the rate on the label, from the start of the cycle |
| Between cycles | Flush the system with it at pH 5.2 for several hours |
| Brand | Canna |
| Maker's part number | 1877 |
| Barcode | 8717662949241 |
| Product code | 2203 |
| Category | Nutrient Management |
How to use
Add D Block to the nutrient solution at the rate on the label, from the very start of the growing cycle. Used like that, it keeps salts from building up in the lines and drippers, and stops deposits forming in tanks where the solution stands for a long time.
Between cycles, use it to flush the whole system: lower the pH to 5.2 and run it for several hours.
See our dripper systems and nutrient management for the rest of the kit.
Questions
When should I start using D Block?
From the start of the growing cycle, at the rate on the label. Used from the beginning, it stops blockages building up.
Can I use it to clean the system between grows?
Yes. Flush the whole system with it, with the pH lowered to 5.2, and run it for several hours.
