- Joined
- Mar 19, 2019
- Messages
- 55
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- 67
I run a herbie over flow. If I turn off my retun pump for a couple minutes and restart it it runs completely silent. Then maybe 20- 30 mins go by and this starts happening and its kinda loud. The drain pipe in the overflow is completely under water. So im not sure were the air bubbles are coming from or how to stop them. You guys have any ideas? Thanks for any information.