Looking to do a conversion on my Aquaoak with central wine rack (similar to Gav) but I was thinking about x2 sumps/weirs.
Water would drain into Sump 1 with a ClariSea SK-3000 + additional kit - Water Bridge - to Sump 2 with more kit and return pump.
Sump 1 would have a narrow 'exit' section to the weir to accommodate the water bridge only to minimise bubbles in the WB.
To be proven - To purge the WB of air run a piece of tubing off the centre of the pipe to suck out the air then place the open end back into one of the sumps.
When power fails both sumps will self level!
Anyone with experience of water bridges? Open to suggestions.