Sure appreciate all the feedback and advice I have received so far. Based on the recommendations from Cary, Eric, and Bob....decided to bite the bullet and order the GAST from C&H....don't guess $40 will break the bank. Will let you know when I get it installed and running. Since I already have some airstones from the earlier failed attempt and some left over water hose, may try to use that for the rest of the summer, then look into a more long term solution.
Cary - The price on the Brookwood is about the same as the price I was quoted for the GAST from a local distributor. By the way, I did a thermal check of my pond...surface temp out in the middle 91, bottom temp @12' 65....and this has been a mild summer so far. By the way, thanks for the email, look for my response.
One other thing....if Bob Lusk is reading any of this....here is a suggestion. Given all the information, disinformation, and general lack of knowledge on the part of many-myself in particular-in regards to aeration....how about an article or a series of articles in PondBoss explaining the ins & outs, pros & cons, advantages & disadvantages of aeration. This may have been covered before in some more distant publications as my subscription only goes back a couple of years. If so, a refresher should would be helpful.