- Joined
- Jan 31, 2020
- Messages
- 315
- Reaction score
- 297
I forget the name of mine but it’s the one where there is a lower pipe with a ball valve and it creates a syphon. The other is the overflow. If your noise is from the weir due to the height, you need to close the ball valve until there is less of a water fall. Not sure if this makes sense so here’s a pic of mine. If I let the water get lower in the overflow, it gets noisy.