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Alan Smith explains and shows the benefits of using a 40,000 PSI Hydroblaster to prepare a pool for resurfacing. The old way of prepping a pool is by using air hammers to "strip" away the old plaster. Using a hydroblaster removes less gunite from the pool which allows a pool to be resurfaced several times without any issues. Plaster, quartz and pebble finishes will also bond better to a hydroblasted surface compared to a chipped out surface.