用这工具把旧的刮掉:Husky 15-in-1 Painter's Tool-18PT0846 - The Home Depot
然后把新的Grout嵌进去:Custom Building Products Polyblend #381 Bright White 1 lb. Non-Sanded Grout-NSG3811 - The Home Depot
最后用这在Grout上封住,以防以后生霉:Fila Grout Proof 24 oz. Tile and Stone Sealer-44750612AME - The Home Depot