Wetroom grout failing

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If I'm doing a re grouting job I rake the grout out to at least the depth of the tile. Obviously hoover out the joints once this is done before re grouting. As Dave said you can get away with 3mm, but if the grout you're removing is very week and you only rake out 3mm it could fail again.
 
Sorry forgot to say, if possible don't use the shower for a week after re grouting. When cleaning the shower avoid harsh cleaners especially ones containing bleach. your local tile shop should be able to advise you on what you should use.
 
If I'm doing a re grouting job I rake the grout out to at least the depth of the tile. Obviously hoover out the joints once this is done before re grouting. As Dave said you can get away with 3mm, but if the grout you're removing is very week and you only rake out 3mm it could fail again.
Thanks Jon, will give it a try this weekend 👍
 

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Title
Wetroom grout failing
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Tile Adhesive and Grout Advice
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Created
Pete43,
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Lou,
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Thread statistics

Created
Pete43,
Last reply from
Lou,
Replies
14
Views
6,237

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