Comparison of Viakal and Flash limescale removers reveals a clear winner; Flash outperforms Viakal in cleaning effectiveness.

Flash's cleaner, priced at £2.44, outperformed Viakal, which costs £2.65, in a recent limescale removal test. The instructions for Viakal recommended a three-minute wait, but substantial limescale remained after this period. In contrast, Flash's five-minute application resulted in the majority of limescale being removed.^12345678910

The reviewer noted, "I was taken aback to discover substantial chunks of limescale still clinging to the tap despite the spray being left for the maximum period." After using Flash, the results were impressive: "the majority of the limescale was removed and after a thorough scrub with a sponge, the tap looked considerably cleaner." The reviewer concluded that Flash not only lifted more limescale but also worked out to be marginally cheaper.

Additionally, Flash's product has the added advantage of tackling soap scum and eliminating 99.9% of bacteria, making it a more versatile cleaning solution. The reviewer stated, "Flash comes out on top, having shifted considerably more limescale than Viakal." Despite Viakal's marketing as the "number one against limescale," the test results suggest otherwise, highlighting Flash's superior performance in limescale removal.