- Oct 23, 2008
- 90
- Pool Size
- 20000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
When the Hayward automation system (pro-logic) switches from one group to another group, the pump shuts off for 30 seconds and the solar valve closes; 30 seconds later the pool pump turns on and the solar valve valve opens. At that moment the vertical pipes going from the pool pad to the roof, shake and hammer vigorously. What can be done to eliminate the shake, rattle and roll?