MATALA Biosteps10, Operation Manuallines

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