Approximately 1 in every 20 pools have a leak. If you notice a larger than normal (more than 1/4 inch per day) decrease in pool water level, you have good reason to suspect a pool leak. If your pool has an automatic fill device, it might be harder to detect. Use these additional clues to help diagnose your pool leak likelihood:
A common reason for minimal water loss occurs with natural evaporation. To best determine if your pool is experiencing evaporation or water loss due to a serious leak that needs immediate attention, you can perform the "Bucket Test". Follow the guidelines in the article "Pool Leaks" for the bucket test. First determine the water loss. Where does the water loss stop? At the bottom of the tile line- could be the grout around the waterline tile or cracked tile. Or if the water loss stops at the bottom of the skimmer- resealing around skimmer or replacement may be required to take care of the issue. If a greater water loss it may indicate issues with the wall returns, main drain, or structural or surface crack. Having a qualified leak detection company follow up might be required. Check around the pool equipment for any standing water. It is also important to note if the water loss is only when pool pump is running. During the process of resurfacing the pool, new wall fittings and/or lights are replaced and sealed. If the water loss is immediate after refilling the pool or within 30days, it would be cause for the resurfacing company to return for a leak detection to determine the reason. If the leak is due to workmanship it will be evident within a matter of a week or two. Keep in mind that water loss is eminent during the hot summer months due to evaporation, excessive splashing, and constantly running water features.