Bruce, I agree with you 100%.
George, unless Bruce was managing your ponds, it isn't up to Bruce to make you aware of all the aeration possibilities. It's up to you, as a pond owner to spend the time to do your own research if you don't want to hire a pond management company.
Quote George:
"They will ask for average water depths and surface acreage to calculate water volume daily circulation numbers for destratification � not for aeration requirement.
Averages are not adequate to properly design a bottom diffuser system with Texas water volume variations that we normally have in our pond/lakes."
True. But the calculations are just like putting date into a computer, if the correct date isn't furnished or inputted, then the results will be incorrect. I'll bet the bottom diffusion aeration system that was spec'd out would be different if you told that aeration company that your water volume fluctuated "X" amount, and that you had "X" amount of BOD in that pond.
"The reason I mentioned aeration options other than bottom diffuser systems such as Vertex products, is that I had a major fish kill in our severe drought of 2011 that could nave been avoided had I been properly informed."
George, who was managing your pond? Bruce or you/your son?
"Perhaps I missed it, but I knew nothing about surface aeration such as Kasco and since PondBoss does not allow any posts other than PB advertisers , I felt that I had not been properly advised."
Completely untrue. You are posting here, aren't you? NOT all members are advertisers.
Did you know that there are surface agitator systems other than Kasco?
Ask the Vertex vendors to discuss other aeration options available to you. You likely have nooks and cranny coves and inlets with varying water depths that may require flexible approach.
George, I agree 110%. In BOW's that are shaped in such a way that vertical water movement won't move all the water without many air stations, there are more options than just one system.
I'm doing just that in an 18ac BOW for a HOA. They have experienced summer fish kills 2 out of the past 3 years. The system that I'm bringing in front of the HOA Board of Directors is a hybrid system, with both bottom difffusion air stations and surface agitatiors for the much shallower fingers or coves.