chippwalters

Are you planning on bringing any kits to the frag swap?

Very much looking forward to the meeting! I'm happy to bring glass bottle Cokes again...

Tagging along to see where this goes!

Thanks for the info. FWIW, I, too, have used this method, only I do have an Aqualifter on continuously to keep the siphon flowing. If you go that route, be sure and install a check valve at the top of the siphon just in case the Aqualifter quits working, so you don't lose your siphon. Also, you still need to first prime your overflow as the Aqualifter doesn't do that for you.

I have built one of these mame style overflows in my tank and it works perfectly. First off, I'd recommend setting your U-traps to the same height dimension inside and outside. The length of your outside U-trap as shown is much longer than the inside U-trap and I suspect is siphoning off all the reserve from your inside U-trap. Next, add a check valve and Aqualifter pump and keep them running continuously sucking out any air that might enter the system. I assume you did a good job of cementing all the joints? Lastly, in order to prime the first time, remove the cap from your vertical clean out tube and fill with water. The Aqualifter will not prime your siphon, but it will keep it from losing the siphon-- assuming all else is setup correctly.

And of course be sure to position your pump high in your sump and leave enough head room in your tank to handle excess return volume in the rare case the siphon quits for whatever reason. Burning up a sump pump is less expensive than cleaning up gallons of saltwater dumped in a carpet. And a float switch can also keep a sump pump from burning up as well. HTH.

I, too, hope to be there. Is there anything I can bring?