Review of CLR Calcium, Limescale & Rust Remover 1 Litre

Works well on calcium build up in the shower – We have quite hard water, and it was causing a build up on the shower tiles and glass. Over six months of living here we've tried almost everything else. I put 50% CLR and warm water into a spray bottle, sprayed it on the problem areas and left it for 30 minutes. The shower screen rinsed clean easily.