Does the water drain through the sand around the pavers?
No. pavers and the joints are not permeable. Water will seep into the joint sand gradually, but once the joint is saturated, water will shed off the paver surface just like any other pavement. Slope (or fall) needs to be designed into your paver project for water to run off naturally. A minimum of 1 inch fall every 8 to 12 feet of paving, away from your home, is recommended. This slope should be designed into your base course prior to installing the pavers.
