I have a ViaAqua multi-skimmer (not the delux model) and it doesn't really capture much gunk. It used to, but not anymore. I suspect this is by and large caused by it being set up incorrectly. For instance most of the time it just filled with water and I really didn't care as I was too busy, but now I want to try and get it running efficiently.
My question is regarding the bubbles that come up into the collection cup. How far up the hole in the middle of the cup should the bubbles be bursting (if at all)? Presently they burst marginally below the point of overflow, but I can reduce the flow and bring that down a good inch, however I am not sure what the correct position is.
Also, I am having trouble identifying the best position for the venturi to be at. If I put it all the way down then generally the cup fills with water, but if I extend it all the way up this is where I get the above mentioned bubble level.
I'm rapidly coming to the belief that the right combination of settings is a bit of an art and perhaps not answerable in general terms.
Any assistance is greatly appreciated.