"VERY DISAPPOINTED" star star_border star_border star_border star_border After trying for years to find a long lasting eco blue flush, we were very disappointed to find that this product does not live up to its claims. We used two blocks in the same toilet and did not get more than 400 flushes - less than 10% effective. Became a very expensive mistake. Mr Kelly - 09 March 2021 support_agent A note from the team Thank you for your review. We’re sorry to hear this hasn’t fully met your expectations and we’ve been in touch to offer you a refund.