InterNACHI Pool & Spa Inspector Practice Questions - InterNACHI Certified Pool & Spa Inspector Exam

What is the typical thickness range of a residential vinyl pool liner?

0.005 to 0.010 inch 20 to 30 mil (0.020 to 0.030 inch) 1/4 to 1/2 inch 1 to 2 inches

Correct Answer:

20 to 30 mil (0.020 to 0.030 inch)

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