I grouted 5 bathroom floors and 2 showers in about ten hours including base tile. Good luck doing this with a trowel. Instead of using a regular caulking trowel, use a rubber trowel or better yet, a Bondo trowel/caulking paint and then a sponge. You still need to make small areas as instructed. No waste as excess material is quickly removed and returned to the bucket for reuse. Not for use with water mixtures.
TapePlus Gaffer Tape - Large 2 Inch X 40 Yards Roll - Versatile Black Tape For Gaffers, Ducts, Floors, And More
31 Review
Gorilla Tough And Wide Silver Duct Tape, 2.88" X 25Yd - Pack Of 1 For Superior Strength And Durability
23 Review
High Tensile Strength Duct Tape Silver, 5.8mils, 2 Inches x 50 Yards - All-Weather Duct Repair Tape for Commercial Use, Heavy-Duty Repair, Packing with Temperature and Shear Stress Resistance - XFasten
39 Review
Strong & Wide White Gorilla Duct Tape, 2.88" X 25 Yd, Pack Of 1
24 Review