One of the best ways to buy water for a swimming pool is locating a bulk water delivery service. These companies deliver the water and pour it into the swimming pool. Some of them also provide chemical testing and other swimming pool services, though others are simply there to deliver the water.
There are a few ways to find a good water delivery service. The first way is to ask a local pool maintenance company if they have recommendations. Another option is to use a locator tool like the one at BulkWaterDelivery.com. Select a state and then look at the list of suppliers in the area. Many states have water delivery services in all major areas.
Before ordering water, calculate the amount needed by volume. The bulk delivery water company needs to know this beforehand. Some of them know estimates based on the approximate size of the swimming pool, but it is best to take measurements and calculate the volume. There are also online tools that simply require entering the measurements. It requires knowing the shape, length, width and depth of the swimming pool.
In the future, do not empty the swimming pool of water in the cold seasons. It is easier to protect the water and get it treated before summer arrives than it is to empty it and have to re-fill it. This also helps save water in places like California where there is a big water shortage.