PVC-O pipes has been chosen as the preferred material to be used for transmission lines in Puerto Princesa as to replace the traditional pipe material of steel pipes. This is due to PVC-O capabilities such as easy & efficient installations, effective cost and immunity to corrosion. The PPCWD Technical Personnel embarked on an insightful visit to two distinguished Water Districts which San Jose Del Monte Water District and Santa Maria Water District in Bulacan, Philippines, unveiling a paradigm shift towards utilizing PVC-O pipes. The objective of this project is to address the growing water demand by proposing new, extensive, and quality transmission line from Bqy Irawan via Bgy Sta. Lourdes to Bgy San Pedro. The project consists of a 20 km pipeline of DN400 PN16 TOM pipes.