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Dougs Third Go
all depends on ventilation, drying conditions etc, if I see groutpowdering on face of tiles I usually go for a wipe off, normally though I'll have all 4 walls grouted and a brew in hand before I set the sponge to work, based on say a typical 20m2 bathroom.Ash, Doug just touched on potential pitfall of inexperienced grouting. When you apply the grout, how long are you leaving before you profile with your wash boy? Here is what I tend to do in standard bathroom, grout wall 1 then 2, profile wall 1 grout 3, profile 2 , grout 4 then profile 3 and 4, change water then wipe all 4 walls, change again and wipe again (optional)