Hi All,
I bought a second hand cube. While I will be waiting for the refinished cabinet's paint to cure this week I would like to get the display-tank sorted out so long as the silicone is going to take at least 7 days to cure as well.
(You can see the thing here: https://www.reef2reef.com/threads/roberts-180l-rescue.807270/#post-8648585)
Please see a picture I took of the overflow-box that has already been plumbed. Obviously the plumbing was leaking when I got it (judging by the thick rings of silicone I cut off with a razor blade). I plan to take all the plumbing out and redo it from scratch.
Here is my question: Isn't this tank going to drain almost entirely into the sump if the return pumps stop for any reason with that pipe so low in the overflow box? By my crude grasp of where and how water flows, what they had there doesn't make any sense to me whatsoever? It may have been fine if the overflow box didn't have the open grating in the bottom as well not so?
Am I missing something?
The returns were just siliconed in place - and obviously was leaking at some point. I plan to remove all the pvc as well as the black plastic sheet, clean up the silicone everywhere, re-silicone the plastic backing back in (ensuring tight seal around the return holes) and replace the returns with bulk-heads and also do the same for the drain/overflow box. I was thinking the only way to avoid disaster of the entire tank draining into the sump in the event of a power-out or pump-fail would be to bring the pipe coming up the overflow box all the way to the top.
Right? Am I misunderstanding some physics here?
Thanks in advance
I bought a second hand cube. While I will be waiting for the refinished cabinet's paint to cure this week I would like to get the display-tank sorted out so long as the silicone is going to take at least 7 days to cure as well.
(You can see the thing here: https://www.reef2reef.com/threads/roberts-180l-rescue.807270/#post-8648585)
Please see a picture I took of the overflow-box that has already been plumbed. Obviously the plumbing was leaking when I got it (judging by the thick rings of silicone I cut off with a razor blade). I plan to take all the plumbing out and redo it from scratch.
Here is my question: Isn't this tank going to drain almost entirely into the sump if the return pumps stop for any reason with that pipe so low in the overflow box? By my crude grasp of where and how water flows, what they had there doesn't make any sense to me whatsoever? It may have been fine if the overflow box didn't have the open grating in the bottom as well not so?
Am I missing something?
The returns were just siliconed in place - and obviously was leaking at some point. I plan to remove all the pvc as well as the black plastic sheet, clean up the silicone everywhere, re-silicone the plastic backing back in (ensuring tight seal around the return holes) and replace the returns with bulk-heads and also do the same for the drain/overflow box. I was thinking the only way to avoid disaster of the entire tank draining into the sump in the event of a power-out or pump-fail would be to bring the pipe coming up the overflow box all the way to the top.
Right? Am I misunderstanding some physics here?
Thanks in advance