Does the video I posted help?
would a 55g tank fit in there if not for the 29g ato reservoir?
I think so.. so the uv's plumbing is behind the ato tank?
In my tank I would probably have a pump from sump running at reduced flow, just to keep things ticking over if the main pump failed, but I haven't. In your tank with dual returns I would probably just turn them both down and ditch the extra sump water as mentioned before. Syphon breaks are a must, in display submerged lines
Could be, you got a drill?
Of course. I already drilled the holes a few days ago. Let me run to the hardware store and get the vinyl tubing to make the return tube higher than the tank water level.
I must have missed that bit. What's the tubing for? A little hole in the submerged lines will spew a little water out, but that's good. It shows you they are still clear.
On the left is what you currently have on the right is what you need, you need to bring the line ABOVE the water level before going back down. Now this will still create a siphon so you have two options. Drill a small hole (aiming down) at a point ABOVE or AT the water level on the pipe OR raise your flex lines so they are right at the surface and suck air the second power cuts off(I would do both) . Sadly just raising the flex tube above the water line is not 100 percent of a replacement for a solid line above water level as those flex lines can slowly leak.
There you go, now we're getting somewhere!! Now With the pumps off, and siphons broke(sump level stabilized), place the return outlets on top the surface of water. Once the pumps are running, water level will rise, covering outlets(some adjustments may be required). How does it operate like that? Does it suck air into display, does it stop backflow at a comfortable level in sump?@a.t.t.r
I did a small experiment.
I closed both return pumps and I lifted the return loc lines completely out of the water to break the siphon.
Then I unscrewed the check valves once the siphon was broken to allow all the water to flow into the sump
See how much space remains in the sump? Does that mean if I follow your advice about breaking the siphon by drilling the holes and adding the vinyl tubing, then I can remove the check valves and never worry about a flood?
Was the solution really that simple??!
I feel like it’s too good to be true.
Bigger holes? Too smaller hole will just venturi air into the sump with water. 6mm, or 1/4 inchI do have loclines and I already drilled them.
Actually with the combo of a small hole and the reduced flow cause by the check valve I think the siphon break will work fine. I actually wouldn’t remove the check valves. I just wouldn’t rely on them to do anything more than slow the water.
