Like many here, I have been frustrated by the noise created by the Eshopps overflow box. The product is working great, but it's so loud! So, I took to the Internet to figure out how to make it quiet.
I found a variety of methods, but after thinking about the primary reasons for their success, I realized that the PVC
insert that goes in the INSIDE if the box has an 2" tube sticking off of it for what seems to be no reason. I think figured out the reason!
Could it be a siphon break!? That packing foam that eShopps doesn't tell you what to do with fits snugly into the PVC
pipe with that handy 2" tube sticking out about 2".
So, I experimented with my idea. The water drains great and is as quiet, if not quieter, than the Marineland HOB
filter on my sons little 10g FW
So, either you already know this and think I'm way behinds the 8-ball... Or... This was NOT Eshopps purpose, and I just made it up. Either way, it works and I didn't have to build a specialized PVC
gadget to quieten the overflow.
I would be interested to know if others have tried this method or if its just something I should've known.