Help Required Urgently

[Andy Allen]

Every grout is effervescent free providing you don't over wet it when wiping it off.
MM2 is an awful grout to use especially in hot weather......it goes off to quick and you tend to over wet it just to get the stuff off the tile.......adhesive reacting or bleeding through the joints would normally darken the grout not lighten it.

 

[WetSaw]

If you dampen the grout does it darken?

 

[Angiebeal]

If you dampen the grout does it darken?

Yes it does darken and takes the colour we originally wanted.
Have you had this happen before?

 

[Angiebeal]

Every grout is effervescent free providing you don't over wet it when wiping it off.
MM2 is an awful grout to use especially in hot weather......it goes off to quick and you tend to over wet it just to get the stuff off the tile.......adhesive reacting or bleeding through the joints would normally darken the grout not lighten it.

I am contacting Bal first thing Monday morning and I would like to be armed with as much info as possible. Talking to another tiler earlier said that it may be the adhesive reacting but that sounds unlikely to me. Any advice as what we can do next?

 

[WetSaw]

I am contacting Bal first thing Monday morning

I wouldn't bother. It seems to me that it's been made too wet when washing off. Grout colour reviver/rescue as mentioned previously is your best option IMHO.