Depending on the pools normal evaporation. It is about 1″ to 1-1/2″ per week. When the days are warm and the nights cool evaporation is at it’s highest. Using the ordinary 5 gallon plastic bucket you can perform this simple test to determine if your pool is leaking.
- Bring pool water to normal level.
- Fill bucket with pool water to about 1 inch from top.
- Place bucket on 1st or 2nd step of pool.
- Mark water level on inside of bucket.
- Shut off pump and mark pool water level on outside of bucket.
- Resume normal pump operation.
- After 24 hours, compare the 2 water levels.
- If the pool water (outside mark) goes down more than inside water level, there is probably a leak.
- In case of rain repeat the test.
- Test is invalid after 24 hours.