
Nobody wants to open the hot tub cover to green, cloudy water. ClearWater Liquid Algaecide is the simple weekly step that stops algae before it ever gets a foothold, so your water investment stays crystal clear and every soak is one you actually want to take.
This fast-acting 1L formula is backed by trusted hot tub care expertise and designed to work alongside your existing chlorine routine rather than replace it — giving you an extra layer of protection with easy, weekly dosing and no guesswork. One bottle lasts multiple treatment cycles, making it a dependable addition to any water care kit.
What does the algaecide actually do?
- Prevents algae build-up in pools and hot tubs
- Maintains clean, healthy, clear water
- Works alongside your existing chlorine routine
- Helps avoid costly cloudy water, filter strain and early water changes
How often should I use algaecide in my hot tub?
Add the recommended dose directly to your water weekly, or as needed after heavy use or rain. Run your filter for at least 30 minutes after dosing to circulate the treatment evenly through the water.
Do I still need to use chlorine if I use algaecide?
Yes — this Algaecide is designed to work alongside your existing chlorine routine, not instead of it. Chlorine sanitises the water, while algaecide specifically targets and prevents algae growth.
- Volume: 1L bottle
- Dosing: Weekly, or as needed after heavy use or rain
- Post-dose: Run filter for at least 30 minutes to circulate
- Use case: Suitable for both hot tubs and swimming pools
- Free standard shipping on orders above £20
- Express delivery available for £4.99 (2 working days)