patchy black grout

[mick1307]

Hello,

I was chasing some info in regards to the australian standards on defective grouting.

I have had a professional tiler tile my floor and the black grout is inconsistant in colour. Some areas are black some areas are a light colour.

Is this classed as defective and is he liable to come fix it?

Thanks

[tilerbytrade]

The problem here is there was too much water in the grout.I assume the tiler mixed it to a thick consistency then went about grouting.The grout was setting fast so he added water and reused it. Colour grout should be mixed close to workability as sand/cement grout then allow to set for 10 mins before remixing and this will allow for workability without grout setting too fast.

[supreme tiling]

Even overworking the joints with the sponge whilst grouting can have the same result. Quite a common problem with darker coloured grout if you don't know what you are doing.

[jay]

Welcome to the forum Mick might help if you post some pics of the grout in question

[mick1307]

Thanks for the info guys.

The tiler is trying to pass it off as a manufactures fault with the grout, but half of the grout has turned out so I think he may be kidding himself.

Any suggestions on how he can fix this and make the grout uniform in colour. I have heard of aqua mix grout stain, is this the best and quickest option?

[jay]

would be better if we could see the prob before offering advice ,what type of tile was used