Small Repairs – Once the pavers are thoroughly cleaned and dried, which should only take a day or two, it’s time to fix any issues with the actually paver stones. This could be changing out a couple of chipped pieces, repairing any low spots, and more. Afterward, polymeric sand will be filled into all the joints to strengthen up the patio. Don’t add sand on a rainy day, this will not only be messy but also a waste of time. When wet, the sand will clump together and it won’t get deep down into the joints, becoming counterproductive to the process.