Book updated October 2020. This specialty provides for the service, repair, construction, improvement or removal of in-ground swimming pools, excluding licensed plumbing and electrical works. We create these supplemental self-practice test questions module referencing the principles and concepts currently valid in the corresponding trade. Each question comes with an answer and a short explanation which aids you in seeking further study information. These questions are intended as supplementary study material for fundamental knowledge establishment. They are NOT actual past-paper questions. You should use this product together with other study resources for the best possible exam prep coverage.