5.5K views · 21 reactions | Replacing the punctured inflatable lid of a Lay-Z-Spa hot tub with a solid lid made from PIR insulation board. (Part 2) - In this part, I show you how to make the perfect circle, which was difficult to get as my first attempt could have been better. - TOOLKIT: - Xtratherm 1200 x 2400 x 100mm PIR insulation board - Workpro 32 Piece Reciprocating Saw Blades - JCB reciprocating saw - Foil Tape 75mm x 45 meters | Charlie DIYte | Facebook