It was evident that the previous home owner had not closed the pool properly. Called Colonial to have them open the pool. When they lifted the tarp, the pool was in clearly rough shape. They took off the tarp, filled the pool with water, told us to have the water tested and add the necessary chemicals. Hundreds of dollars later, our neighbour helped us out and told us the reason our pool couldn't balance is because we probably have leaves and debris at the bottom and to clear that out. Once we did that bingo, problem solved. I would have expected the company that opened the pool to tell us it makes more sense to clear out the debris before filling the pool , or you'll be wasting a ton of money. On the plus side they do test the water when we bring it in and let us know what to add. Will be using another company to close the pool.