Don’t gunite pools crack in Vermont?
We have built over 300 pools in Vermont. Water is left in the pool to freeze and equalize the pressure of frost pushing from the outside. Gunite pools require at least 4 feet of compacted earth on all sides of the pool to help equalize the pressure of freezing water inside the pool. In 30+ years of building, we have had only one pool crack and that is because the substrate (material under pool) was not properly compacted to hold weight of pool and water.