Get matched with top pool table assembly pros in Deatsville, AL

The time it takes for a pool heater to heat a pool can range from eight to 48 hours, with an average of about 12 hours for the initial heating. For a more specific example, an average-sized 15,000-gallon pool may take six to 10 hours to heat up by 10 degrees. The exact duration depends on several factors, including the pool's size, the type and size of the heater, the starting water temperature, and the outside air temperature. It may take some trial and error to determine the precise time your specific pool takes to reach a desired temperature.

The average 12-by-24-foot in-ground pool costs $48,500, but depending on the features and materials, prices can trend even higher. You’ll spend less on a rectangular vinyl or fiberglass pool than on a concrete pool in an elevated style (think infinity pool or lagoon pool). Added features like heating, lighting, diving boards, or decking will increase your overall cost.

The formula you’ll use to measure your pool will differ based on the shape of your pool. For a rectangular pool, you’ll use the following formula to find the size in gallons: length x width x depth x 7.5. If the depth changes from one end of your pool to the other, take the average by finding the depth at the deepest and most shallow points and dividing that number by two. Circular and oval pools require different, more complicated formulas, which can be found in this article.

If your pool takes longer than one or two days to fill, you might be dealing with low water pressure. Using a water pressure gauge on your outdoor tap, you can check your water pressure. A reading of 40 psi or below is considered low. A leak, a nearby water shutoff, or several other reasons could cause this. 

If the water pressure isn’t a problem, you could have a low flow rate from clogs, corroded pipes, or other plumbing issues. It’s best to call in a local plumber to get to the root of the issue.