Flexible Pool Spa PVC Solvent Cement for Pool Pump Fittings Water Features Hongye HY-520 solvent cement, manufactured in Foshan Guangdong under ISO 9001 and ISO 14000 certified management, supplied to distributors and contractors in more than forty countries. Technical Performance Introduction Pool equipment rooms punish rigid joints. Pump vibration, thermal cycling between sun exposed and buried pipe, and the constant pressure of a closed loop all work on the same fitting