My buddy told me to add a gallon of water to the mix on a hot day and I'm still paying for it

Mason Perez · 2026-03-12T10:25:09.973549+00:00

We were pouring a patio in July, and it was pushing 95 degrees. My friend, who's been doing this for a while, swore that adding an extra gallon of water to the truck would buy us more working time. I listened, and the finish looked okay at first. Two days later, the surface was covered in a spiderweb of tiny cracks. The whole 400 square foot slab is a mess. I had to call the homeowner and explain why their new patio looks like a dried-up riverbed. Has anyone else had a 'helpful' tip from a coworker completely backfire on a job?

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My buddy told me to add a gallon of water to the mix on a hot day and I'm still paying for it | Concrete Finishers - Rigidtalk