Posted with Dieter's permission, thanks and well done on a very neat and professional pond.










Filtration:
Consists of a 1000 litre settlement chamber which is gravity fed by the bottom drain and 3 x 110 mm pipes skimming surface water.

The settlement chamber is connected via 2 x 110mm pipes to first filter chamber (about 800 litres). The pipes emerge at the bottom of the chamber and are angled in a way to create a bit of a circular vortex type flow pattern. This filter chamber will be running on K1 Kaldnes (static). The chamber has aeration which will be activated only for cleaning the K1. It also features a drain to enable the waste water to be pumped out. So this accounts for one of the 63mm pipes you can see and one of the small 20mm pipes for the air supply.

The 2nd filter chamber is connected to the first via 3 x 110mm pipes with intakes which don't allow the K1 through. The 2nd chamber is 'active', therefore constantly aerated and I'll be using K3 media. The 2nd chamber also contains the main suction to the pump, again with an intake which won't allow K1/K3 to pass through. It's also equipped with a drain for cleaning. This accounts for a further 2 x 63 mm pipes and 1 x 20mm pipe for the air supply visible on the photo.

The pump returns water to three individually controlled (valves) 63mm pipes running back to the pond. One to feed the water feature, another for the surface water return (splits again on the way to the pond to also enable me to feed water back into the settlement chamber if required), and lastly a bottom water return.

You will see a third 20mm pipe in the pump house too, this feeds air to the pond at the deepest part and will run continuously.

The pond is 205 cm at the deepest point.

Now just for the koi to complete the stunning pond. I am sure you will have hours and hours of fun.