Plug and play recommendations:
complete filter systems for different pond sizes
Pond volume
Up to:
Liters
3000
6000
10000
15000
22500
30000
Gallons
800
1600
2660
4000
6000
8000
KOI CARP
Pond volume
Liters
1500
3000
5000
8000
12000
16000
Gallons
400
800
1330
2100
3200
4230
Liters/H
750-1200
1500 - 2500
2500 - 4000
4000 - 6000
6000 - 10000
10000 - 13500
Gallons/H
200-320
400 - 660
660 -1060
1060 – 1590
1590 – 2640
2640 - 3570
Recommend
hose diameter
for pump to filter
mm
25
32
40
40
40
40
inch
1”
1
¼”
1
½”
1
½”
1
½”
1
½”
UVC capacity
range
Watt
9 to 13
9 to 18
18
2 x 18
3 x 18
4 x 18
Recommend
Number of
EzBio 11
Recommend
Number of
EzBio 20
Recommend
Number of
Waterfall
1
1
2
2
1
1
Number of
BioSteps
1
1
1
2
3
4
1
1
1
2
3
4
OPTIONAL
Waterfall
Pump capacity
(MAXIMUM RECOMMENDED FLOW RATE)
The choice of pump and UVC capacity should be made depending on the following variables:
- Height of Biosteps above water level → Pump should be able to give desired flow rate at filter position.
- Water garden pond with few fish → Try to achieve 500 to 900 gph pump flow rate.
- Koi fish pond → Try to achieve 900 to Max.1080 gph pump flow rate.
- Pond in direct sunlight or long hours of sun → Larger UVC
- Higher capacity fish stocking: more fish → Larger UVC
Our Biosteps design is GRAVITY FLOW back to the pond.
-
The outlet fitting needs to be higher than the point of return at the waterfall or pond otherwise filter may overflow.
- Also the distance from outlet fitting to the pond should be kept as close as possible. Maximum distance for outlet pipe
should be less than 10 feet otherwise filter may overflow.
Assembling and Start-up of the filter:
Attaching Inlet and Outlet Fittings to BioSteps
Outlet Fitting Installation:
▪Insert outflow socket through upper hole.
▪Place O-ring on inside of filter and over the threads.
▪Hand tighten nut. Do not over tighten.
*note-A Sch 40 1.5” outlet pipe may be inserted
deeply into outlet bulkhead to extend water outflow.
Three options for outlet connection to pond:
Option 1)
▪Use 1.5” schedule 40 PVC or ABS pipe from your local hardware store.
▪Slide the pipe into the outlet fitting until it comes to a stop.
▪At this point push really hard and twist. Alternatively, tap the pipe with a
rubber mallet until secure. THE OUTLET FITTING HAS A
COMPRESSION FIT and no glue is required. The fit is so tight you will
probably not be able to remove the pipe once inserted.
▪Tip: Lightly sand the very edge of the pipe to help get it started.
Option 2)
▪Install 2 inch rubber
coupler (from hardware
store) over the outlet
fitting.
▪Insert 2 inch PVC pipe
into rubber coupler and
tighten screws.
2
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