I have been gleaning all sorts of information from PB from most of you for the past 2 years. Today, I fired up my home-made aerator and it works awesome! I ordered a Gast rotary vane pump from C+H Sales, ($140 total), 200' of 1/2" poly pipe,($14) a $15 soaker hose and a small piece of plywood with legs to flatten out the soaker hose on. I couldn't afford a commercial unit and this set-up, for less than $175, works 5 times better than I expected the experiment to turn out. Keep up all the awesome sharing of information in here!