Quick Answer
When installing PVC casing for a water well, it's essential to take precautions to prevent damage and contamination of the well water. This includes ensuring proper handling, storage, and excavation techniques, as well as meeting local regulations and standards.
Pre-Installation Precautions
When handling PVC casing, it’s crucial to store it in a clean, dry environment, away from direct sunlight and heavy loads. PVC casing should be stored vertically, with the top end sealed to prevent water and contaminants from entering. Prior to installation, inspect the casing for any damage, such as cracks, dents, or scratches, which can compromise its integrity.
Excavation and Installation Techniques
During excavation, ensure the well site is free from any loose debris or obstructions that could damage the casing. Use a backhoe or excavator with precision guidance to minimize the risk of casing damage. When laying down the casing, use a level and plumb line to maintain its alignment, and secure it with a minimum of 2-3 feet of embedment in concrete or grout to prevent shifting or settling.
Post-Installation Inspections and Testing
After installation, inspect the casing for any signs of damage or leakage, including cracks, holes, or dislodged joints. Perform a hydrostatic pressure test to ensure the casing can withstand the water pressure without leaking. This typically involves filling the well with water, applying a minimum of 200 psi pressure, and monitoring the casing for any signs of leakage or damage.
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