I'm going to be installing a new patio for a client later this summer and while I'm there, they would like me to "refurbish" a small walkway they put in themselves. According to what they told me, the installation was per the specs I would have done and it looks quite well. It was a straight walk with not cuts and it sits level. They also used polysand for the joints but they have settled some. Quite a bit in some locations. My guess would be that they did not run a compactor over the pavers to settle the sand before wetting it. What is the best way to bring the joint sand up? Can I sweep more sand into the joints and wet it, or will I need to clean out all the joints and start over? This is really only an aesthetic issue as we are only talking 3/8" or so down.