CANNA D-Block Drip System Cleaner for Irrigation
CANNA D-Block Drip System Cleaner for Irrigation
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Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
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Keep Every Dripper Flowing All the Way to Harvest
CANNA D-Block is a drip system cleaner that prevents blockages caused by inorganic salt build-up in pipes, drippers, spray lines and irrigation systems. Anyone running automated feed knows how it goes: week five, a couple of emitters clog and two plants quietly go thirsty. Dosed with every irrigation, D-Block breaks salt deposits down before they become a blockage, using selected anionic detergents that stop salts precipitating and clean pipe surfaces as you feed, acting like a magnet on dirt particles. It is non-toxic and biodegradable, and adds a mineral boost that shows in greener growth.
Key Benefits
- Prevents blockages - stops inorganic salts precipitating in drippers and spray lines.
- Use every irrigation - continuous protection, not an occasional clean-out.
- Protects the whole system - pumps, lines and emitters, without affecting uptake.
- Ideal for AutoPot and automated setups - built for unattended feeding.
- Works with any programme - hydro or soil, non-toxic and biodegradable.
Blocked Emitters and Plants That Quietly Go Hungry
Salt build-up in irrigation lines is one of the least obvious causes of poor nutrient uptake and slow growth. A partly blocked dripper still looks like it is working, but the pot under it gets a fraction of the feed, roots stay weak, and that plant finishes with airy buds and low yields.
How to Use
- Standard dose: 0.1ml per 1 litre of nutrient solution.
- Frequency: use with every irrigation, right through the grow cycle.
- Drip and spray systems: add to the mixed tank and run as normal.
- AutoPot setups: dose the reservoir at 0.1ml per litre each time you refill.
- Between crops: run D-Block through with clean water to flush and protect the system.
- Mixing and pH: add after base nutrients, stir, then set pH for your medium.
- Storage: cool, dark and frost-free, out of reach of children.
Technical Specifications
- Type: Drip and irrigation system cleaner
- Dose Rate: 0.1ml per litre of nutrient solution
- Frequency: Every irrigation, full grow cycle
- Active Principle: Anionic detergents preventing salt precipitation
- Compatibility: Drip irrigation, spray lines and emitters, AutoPot setups, all hydroponic and soil feeding programmes
- Safety: Non-toxic to plants, biodegradable
- Storage: Cool, dark and frost-free

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.