Grout going off too soon.

[Time's Ran Out]

Ahh Archie Dremmel what a player he was for Scotland

I saw him score a goal for Preston North End v Chelsea in 1970.
Not as good as his World Cup goal v Holland but a legend for grit and determination.
For those wishing to see his greatest goal look up Archie Gemmel.

 

[Spencer]

Are we talking metro tiles?

Yes metro tiles.

 

[Spencer]

ucp, small ceramics and a warm environment can easily catch you out. I think Rookery's option is best course and use a different grout next time . Grout 3000 gives plenty of time with ceramics.

Thanks for that advice.

 

[Spencer]

I'd try an an acid based cleaner.

This is my first port of call. Was already advised by Adey1980