KipperSarnie
Member
On the Koi pond I had a large settlement chamber with a stand pipe which also acted as my overflow. The settlement was fed from the side of the pond & from a bottom drain. (The general thinking at the time was a bottom drain was only for flushing) My view was to allow a reduced flow from the bottom drain to help remove muck from the pond, it used to settle in the pipe really surprising when you flushed it out.
The water then passed over a weir into a brush camber also with a stand pipe.
From there into a Ha Haa! "Bio ball" lol chamber. (I got my hands on a large amount of spray nozzles filled each one with something, can't remember what, to increase the surface area) The spray nozzles were about 1" diameter 3" long with slots, an inner & an outer to adjust the spray I also used a couple for their purpose as sprays, but more of that in a moment.
The water then went into a pump chamber where the flow of the pump was split 3 ways.
One way went to a couple of the nozzles that sprayed water into the inlet between the brushes & the "bio balls" to oxygenate the water into the filter.
The second split returned water to the pond via a venturi (Home made 3/4 waste pipe "T" with a silicone nozzle to make the jet & a lump of foam in the air intake (Upright of the T") to keep the noise down.
The third way split & most of the water went to a trickle filter from where it poured back into the pond.
If you look in the first blurred picture of the bare pond you can see the return comping out of the wall with the Venturi beyond it.
Maintenance was quite simple. block the two inlets with stand pipes pull the main stand pipe overflow empty the sump, Replace the main stand pie & release the bottom drain pipe once it runs clear block it off again & pull the main pipe which was connected to the sewer. replace the pipe pull both inlet standpipes when full restart your pump.
If the brushes needed a clean then a quick shake in the chamber before pulling that stand pipe to empty.
I kept the bio balls in "Onion"? sacks, nylon mesh bags so I could every so often rinse them in the main chamber to clean.
I used KeyTerrain fittings through out, roof drains for my bottom & side drain, the bottom drain had a homemade dome.
Sorry i've over done it again!
The water then passed over a weir into a brush camber also with a stand pipe.
From there into a Ha Haa! "Bio ball" lol chamber. (I got my hands on a large amount of spray nozzles filled each one with something, can't remember what, to increase the surface area) The spray nozzles were about 1" diameter 3" long with slots, an inner & an outer to adjust the spray I also used a couple for their purpose as sprays, but more of that in a moment.
The water then went into a pump chamber where the flow of the pump was split 3 ways.
One way went to a couple of the nozzles that sprayed water into the inlet between the brushes & the "bio balls" to oxygenate the water into the filter.
The second split returned water to the pond via a venturi (Home made 3/4 waste pipe "T" with a silicone nozzle to make the jet & a lump of foam in the air intake (Upright of the T") to keep the noise down.
The third way split & most of the water went to a trickle filter from where it poured back into the pond.
If you look in the first blurred picture of the bare pond you can see the return comping out of the wall with the Venturi beyond it.
Maintenance was quite simple. block the two inlets with stand pipes pull the main stand pipe overflow empty the sump, Replace the main stand pie & release the bottom drain pipe once it runs clear block it off again & pull the main pipe which was connected to the sewer. replace the pipe pull both inlet standpipes when full restart your pump.
If the brushes needed a clean then a quick shake in the chamber before pulling that stand pipe to empty.
I kept the bio balls in "Onion"? sacks, nylon mesh bags so I could every so often rinse them in the main chamber to clean.
I used KeyTerrain fittings through out, roof drains for my bottom & side drain, the bottom drain had a homemade dome.
Sorry i've over done it again!