This is a 6000 Gallon pond designed by us up in Scotland.
The owner has built the pond himself and done an amazing Job! We supplied all the equipment and made plans of where everything goes.
The system is 2 bottom drains, both with air lifts. One drain goes direct into a Nexus 320 and the other into a 24″ K1 Micro Bead.
Its a brilliant system and the owner is very happy.