Brenda,

Are you having this done professionally and have they talked to you about the proper thickness of the the cross section of the paver driveway section? It is important to have good drainage in the subgrade away from under pavers (subgrade relief drains). To keep the strength of the subgrade and also for the health of the grass. I would use sprinklers from the edge of the driveway. Drip tends to clog and they very difficult to replace among the pavers and goes counter to having good drainage under the pavers which wicks away the water quickly. JMHO Aloha