@a2j 11 October 2021 more from that month

How do you remove grout between the bathroom floor tiles? I just scrub it and it obviously doesn't work. It's a mixture of dirt and hard water/soapscum stains. Is there any chemical or cleaner I can use or is there a technique to get it out easily? Or even better, is there a way to prevent this from accumulating? Let me know your suggestions please.