I have an overflow with a nipple for a piece of airline hose. The first time I set it up I sucked the air out and put the hose into the water. Never needed to "reprime" it since. I live in fl and our lights go out daily.
Again, just match pump flow after headloss to rated flow of overflow. Get as close as you can or go oversized a bit with the pump and just dial it back a bit. Just need to keep the air bubbles from building in the tube. Get flow fast enough and it will flush any bubbles out.
Again, just match pump flow after headloss to rated flow of overflow. Get as close as you can or go oversized a bit with the pump and just dial it back a bit.
Just need to keep the air bubbles from building in the tube. Get flow fast enough and it will flush any bubbles out.
There is no way siphon will start by itself without priming it first. Dav3 himself mentioned that he primed his overflow at first. So why remove the aqua lifter if you already have it? Why not just leave it there since there is no 100% guarantee that your overflow will be immune to bubbles?
I would rather have an over sized overflow box than under sized. If you miscalculate your flow by the gate valve at the return, guess what will happen? If the return is even just slightly more than your overflow you won't notice it and one day when you come home you will find your DT is flooding your floor. Just remember in CPR overflow box the air pocket that is trapped due to accumulation of air bubbles always stays above the water flowing on the U chamber. Even if you have to set your DT level at max it will not remove that air pocket without using an aqua lifter.
But an aqualifter is a good insurance policy.....Not necessarily to rely on, but to have as a fail safe.Relying on an Aqualifter that can fail doesn't sound like a good idea to me. Better to fix the issue.