Quick Answer
PVC well casing is generally less durable and resistant to damage compared to steel casing, which makes steel the better choice for long-term well functionality and reliability.
Durability Comparison
When it comes to water well casings, durability is a top concern. Steel casing is a more suitable option due to its superior strength and resistance to corrosion. PVC casing, on the other hand, can be prone to damage from external factors like soil settlement and root growth. In fact, PVC casing typically lasts around 50 years, whereas steel casing can last for 100 years or more.
Installation and Cost Considerations
While PVC casing may be less expensive upfront, the cost savings are often offset by the need for more frequent replacements. Steel casing, although more costly, requires less maintenance and is generally easier to install. In fact, steel casing is often set during the initial well drilling process, eliminating the need for separate casing installation. This streamlined approach can save time and labor costs.
Corrosion Protection Options
To ensure the longevity of steel casing, it’s essential to take steps to prevent corrosion. One effective method is to apply a protective coating, such as epoxy or polyurethane, to the casing before installation. This barrier helps prevent corrosion caused by exposure to water and soil. Additionally, using a cathodic protection system can also be effective in preventing corrosion and extending the life of the steel casing.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.