ClearWater
ClearWater Chlorine Granules 10kg Jerry Can (2x5kg)
ClearWater Chlorine Granules 10kg Jerry Can (2x5kg)
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Running out of chlorine mid-summer means a soft spa and a delayed soak while you wait for a reorder. Stock up and save with this bulk 10kg twin-pack of ClearWater® Stabilised Chlorine Granules — the trusted sanitiser that keeps hot tub and pool water clean, safe and crystal clear all season long.
Supplied as two 5kg jerry cans (10kg total), this is a genuine bulk buy rather than a slightly larger single tub, giving you real value alongside the convenience of not reordering every few weeks. The fast-dissolving, stabilised chlorine formula kills bacteria and harmful organisms on contact, and it's suited equally to shock dosing after heavy use and everyday routine maintenance. It also has a minimal impact on water pH, so balancing your water afterwards stays straightforward rather than becoming its own chore.
Ideal for hot tub or pool owners who go through chlorine quickly across the season, and perfect for anyone wanting fewer reorders and a lower cost per kilo, buying in bulk means your water stays perfectly sanitised without ever running short.
- Pack format: Two 5kg jerry cans, 10kg total
- Formula: Fast-dissolving, stabilised chlorine granules
- Dosing guide: 2g raises chlorine by 1ppm per 1000L of water
- Target chlorine levels: 1–3ppm for pools, 3–5ppm for hot tubs
- Water pH impact: Minimal, for easier balancing
- Safety: Always read the label carefully and follow dosing instructions before use
How do I dose my water with these granules?
Test the water first and dose if it's below 1–3ppm for pools or 3–5ppm for hot tubs. Measure your dose using the guide of 2g per 1ppm per 1000L, dissolve the granules in warm water, then pour into the tub. Run the filter for 4 hours before re-testing, aiming for 3–5ppm.
Is this suitable for shock dosing?
Yes — it's ideal for shock dosing as well as everyday maintenance, so one bulk pack covers both jobs across the season.
Why buy the jerry can twin-pack instead of a single tub?
Buying in bulk means fewer reorders and a lower cost per kilo, so your hot tub or pool stays sanitised all season without running low.
- Free UK delivery on orders over £20, with express delivery available for £4.99
- Trusted by spa owners for consistent, reliable results
- Bulk value: two 5kg jerry cans supplied together, lowering your cost per kilo