The fact you have no fish in the pond then I would say go for it. Unless you plan on putting fish in it immediatly then it will have time to mix and bring up the O2 levels by surface action. You could spray it in the air and allow it to slash into the pond which will help and is the way the I feed about 4000 gallons into my small 1/3 acre pond. Been doing it for several years with no problems.

Bob