Originally Posted by meicalnissyen
I can fab up a sump that would fit underneath the stack
wouldnt have the traditional cascading wet/dry effect,
well, I could keep a gap on the end that is in the pic, and make an "L" shape should get 20 gal
easy, mebbe 30
splash thru most of the media and flow thru the rest to the pump
said pump will need to run at 8 feet of head though
You have pics of something like what youre suggesting?
You have to gauge how much water is going to be in the pipes and have enough water volume in the sump to handle that amount and still be deep enough to have the return pump not be sucking air. There are many choices for return pumps as well as containers to use as a sump. Water volume is almost secondary to shape of the sump. So say, for example, a 20 gal
long tank would be too short while a 20 gal
high tank would work fine. They both hold the same amount of water. So you need to think a little differently. Build to your need not "I have this so I can use it."
I'll try to find some of my pics of my old setups using this method. I don't think the one in my albums here has a view of the drain and return section of my current setup. In this one, I was just using some 10 gal
flats to hold some Bettas so the return pump was just an old powerhead I had laying around and the sump was an old 15 gal
tank. But I've made sumps for my systems from everything from a garbage can to plexiglass or glass tanks. It just has to hold enough water as I described above.