Pool leaks often go unnoticed, especially when an autofill valve gets stuck and continually sends water out through the overflow drain. A steady hiss in the autofill box usually means the valve is stuck open and needs professional repair.
Cracks can also waste water. Use the bucket test to distinguish evaporation from a leak. Normal evaporation lowers the pool and bucket evenly, while a crack causes the pool level to drop faster. If the pool drops more than the bucket, you likely have a leak and should contact a pool expert.
For helpful videos on the bucket test and checking for pool leaks visit IRWD.com/poolcrack and IRWD.com/poolleak.
