This pond is just a bit of everything from a hybrid (between a koi pond and water garden) its all DIY and retro(meaning all the plumbing was put in after the pond built. This was originally one of those ponds where I dug the hole threw in a pump and called it a pond.So all the plumbing is a bit odd-when I say that you'll very soon see why I did...
DIY Hybrid Retro 2,000 gallon pond
This pond is 7x13x3 with a 200 gallon top basin and cascading falls.And houses my longfins.
this picture was taken a year after the pond was built and changes were made.
Now for its unusual plumbing. Lets start with its in pond skimmer-Yes it is a dog dish.and the pipes go into the side of the pond just as the other ponds. and underground into the mechanical filtration.Again all pipes inside the pond are not glued so you can adjust the skimmer up and down as needed depending on water level.
This is one of two bottom drains and yes they are salad bowls turned upside down with 1/2 pvc pieces attached to the rim of the bowl so that there is a gap between the bowl and liner.
both pipes from the bds go into the side of the pond-just like the pond above.
and to the mechanical filter-set up basically just like the water gardens except this one is a commercial sink-Remember this is a gravity fed filter so the mechanical filters water level must match the ponds water level.
again I'm using submersible pumps so they go behind the brushes and mats(this is 3 days worth of accumulation during the heaviest feeding time of the year).You clean this filter the same way but, instead of putting on small piece of tubing I just disconnect the tubing from the bio and do my water change there.
Bio filter sits behind the water falls and empties back into the top basin of the falls.
Inside of bio filter-this is an upflow system-I have wadded up bird netting at the bottom and then the filtration-I have a grate that sits just above the inlet so their is an empty chamber there at all times(this would be great to add a valve so you can just flush the bio out)
Note how clean the bio is bio can work efficiently if it is dirty
and then bio empties into the top basin
Cleaning this type of pond
basically the same as the first-you just disconnect the tubing going into the barrel(would be made easier if you just put a valve in)....do your water change(I do about 25-30%) on this pond a week. take out your brushes and pads rinse with a hose.vacuum out gunk with a shop vac. replace brushes and mats and refill with water.