Quick Answer
Regular cistern seal inspections are crucial to prevent water loss and contamination. Inspect the seal every 5-10 years or after any significant changes to the cistern or surrounding soil. Look for signs of damage, erosion, or mineral buildup.
Identifying Potential Issues
When inspecting a buried cistern seal, start by visually checking the area around the seal for any signs of damage or erosion. Look for cracks, gaps, or mineral buildup that could compromise the seal’s integrity. Take note of any changes in the surrounding soil, such as settling or shifting, which could indicate movement that may affect the seal.
Inspection Techniques
Use a flashlight and a pair of gloves to carefully inspect the seal area. Check for any signs of leakage or water seepage around the seal. Take detailed notes and photographs to document your findings. Consider using a dye test to help identify any leaks or areas of water seepage. For larger cisterns, consider using a camera or inspection drone to get a closer look at the seal from different angles.
Repairing or Replacing the Seal
If you find any damage or issues with the seal, take prompt action to repair or replace it. Clean the area thoroughly before applying a new sealant or patching any damaged areas. For more extensive repairs, consider consulting a professional or using specialized equipment, such as a concrete cutter or drill. When replacing the seal, ensure it meets or exceeds the original specifications to prevent future issues.
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