Ball Check Valves????

[ronau]

Originally Posted by craigwmiller

Redundancy is a great word! (I have an extra emergency drain just in case LOL)... On the return side I would recommend that your loc-line is as short as possible, so it's not able to be bumped down and become too low (draining too much water in the event of outage), and then totally skip the check valve.

I was thinking of adding an extra emergency drain as I have a 28" semi coast to coast external overflow. Then I could try a Bean Animal drain in the future but with the flow rates I will have, the Herbie should be more than sufficient.

The plan right now is the 2 90° elbows and then a flare but I am gonna try a couple different loc-line set ups. For each different set up, I will drop them as low as possible and do my power outage drill.

[craigwmiller]

Yep, the Bean Animal is what I setup on this tank. 3 x 1.5" drains, with 1 x 1.5" return. 1 drain in full siphon with a gate valve choking it, another drain with barely a trickle, and the third is 1/2" higher than water line at the top, and 2" above water line in the sump completely dry. So technically I have a Herbie (2 drains with water), but my herbie-emergency has the bean-animal extra siphon tube on the top which turns it into a 2nd full-siphon even before the 3rd drain even gets wet!!

Sounds like you have a good test plan. I did many power outage tests on my tank while in the first couple months of tinkering, needless to say I changed a few things after each test, and a couple tests I had to abort before I needed rubber boots