Thank you , will look into them and order some hose and add my next diffuser this year, with maybes another next if I use the 3/4 horses gast pump then.

I always thought at least adding an aeration system would be the biggest single thing I can do for the pond, and is better than nothing. As adding this will aid the bacteria already present in eating all the bio-degradable muck.

Will let you know what the water results are next week and the plan for the pond is , as far as lime etc.