Thought I responded to your last post, Zandor, but I must not have posted it. thanks for the kind offering to answer what you can of my questions. And that cup of coffee or a beer sounds good I'd like to take you up on that sometime, thanks.
The PH if I am not mistaken should be set at 6.4 - 6.5 is that correct? I keep coming across the figures 5.6 -5.7, am I missing something here? which is correct?
When growing bubbler style is the water level in the beginning of the veg stage supposed to be just below the net pots or are the pots supposed to be partially submerged? and does the water level change any for the flowering stage?
I was also wondering what everyone does with the Nutrient water that is removed from their bubblers or nutrient resevoirs when they change it periodically? is their something it can be used for beneficially or do ya just toss it?

Thanks again, the help is very much appreciated,
Bill