CPR Overflow CS50

[daddy01]

Hi Ben,
Thanks for reply would it be possible to send me a Photo of your setup? Just curious. I modified the out put with 30 degree elbows instead of ninety and kept part aabove waterline, that fixed my syphon prblems and quieted it down also. My wife is my tester as I am hard of hearing and she isn't so when she gets home I'll know for sure.
Thanks for the advice
Jim

[bsyoun]

Hi Jim,

My sump return isn't much, but it works for now. It's just tubing attached to a powerhead. I'm planning to change the set-up to something more reliable and sound.

As you can see from the picture, the tubing goes into my tank and I've cut a hole right under the waterline. As a result, when the power goes out, some water from the main tank will siphon into the sump, but as the waterline lowers it eventually goes below the hole, thereby allowing air to enter the tubing and breaks the siphon. This picture didn't turn out too clear, but I tried to draw an outline of where the hole and the waterline are. I hope this helps!

Cheers,
Ben