Muddy,
I'm no expert on aeration but with a new pond you can start aeration any time & run as often as you like.
Why didn't you put the geothermal loop under ground instead of your pond? In the summer it will warm your pond & cool it in the winter. The whole point in running an aerator is to mix water keeping oxygenated water throughout the water column.
Even if you suspend the diffuser above the HP loop you could still have some bad water below which can cause problems.
I would recommend placement of the diffuser on a pad fashoned & connected to a pole so it could be slid up & down in the water column as needed. In the spring (esp.) & fall when ponds normally turn over start lowering the diffuser to gradually turn the pond over preventing the problems associated with low DO. Then when the weather warms (in summer) & cools (in winter) with little chance of natural turnover move the diffuser back up above the loop.

BTW It would be prefferable to wait until next spring to stock LMB.


Pond Boss Subscriber & Books Owner


If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric