HOZELOCK - Waterbutt Treatment : Ideal for Water Butt, Non-toxic, Prevents Unpleasant Odours and Scum, Keeps Water Free From Slime and Algae [2026P8000]

Have been using this all summer and really makes a difference. Used it in my two IBCs after winter storage as water was smelly. Cleared very quickly and use it whenever they are topped up (twice so far this year), keeping them fresh and odour free. Very little needed so still have enough for winter storage. One bottle a year is very cost effective.

I'd ordinarily give it 5 stars - it actually works! - but nowhere does it state what's in the mixture so it's all a matter of trust, hence only a 4.

Within a few days the smell had gone from the water butt

With 3 water butts I needed a product to keep the water in them clean. This works very well and stops any smell.

250 l butt which gets a lot of sun Took the whole bottle to get it sorted!

Does an excellent job. I suggest that the Amazon boss man sells a few thousand of these to Trump for the reflecting pool.

I'm unsure of the recommended dosage - they would inevitably want you to use more! That said, I find that it works at below the rate they say and it is well worth using.

very good .