105G Custom Shallow Paradise

[JDigital]

Originally Posted by lastlight

So if the tank below can handle all the backflow why use the check valve? Just curious.

I don't want my sump filling to the rim every time I shut my pump off or the power blips/goes out. Yes, according to my math the sump can handle it, do I want to tempt that every time? No. What's wrong with an added piece of security? Just Curious.

I had one on my 75G and I had to shut my return pump off 1/week for 7-8months for waterchanges.. Not once did it fail. You guys are talking like they fail every time they get used. Sorry for your bad luck, but I can't argue with success.