Hi Guys, So I have not long been in this house and I was recently going to re-seal the shower but I have noticed that they have used grout on the internal corner which has a hairline crack at the very top. On another forum someone has basically said that silicon should've be used for the corners and not grout. So what is the best way to tackle this? Should I cut all the grout out and start again with silicon? How hard is this job (I've never done anything like this before)? I am thinking of getting this tool below to scrape the grout out? https://www.screwfix.com/p/pro-grou...gclsrc=aw.ds&dclid=CLOWx9-uh9sCFQsT0wod33AMzg Thanks Should there be silicon between the pattern?