[fishytime]

Originally Posted by lastlight

You think that's bad? I never really planned for power outages too well and the first time I tested for one I got quite scared. When the display, pipes and fuge all finish truckling down into the sump I see the meniscus form at the top of the sump!

My solution is to drill a few holes in one of my 4 return outlets into the tank. They extend about an inch down into the water when the tank's running. If I can break siphon earlier...well an inch less draining down there is a massive deal!

We (my wife and I) love what you've done with the horse tank. I know she wants something similar some day so do it up right and maybe I'll copy one one day!

What I did was make my primary drain standpipes a bit taller, so less water drains out of the overflow boxes.....when I get motivated I will hack apart the return line to the pony tank and plumb in a check valve.... that ought to help...FWIW I have siphon breaks drilled into the return lines.