Pond UV Systems

The introduction of UV units to pond filtration in the 1980s revolutionised fish keeping. For the first time, pond owners could guarantee water clarity 365 days a year.

In addition to killing water-borne algae (green water) UV light also benefits the fish by reducing bacteria and water-borne fungi.

What size UV unit do I require?

The following table will ensure that you select the correct size UV unit.

Please note: To work out your pond's gallonage multiply average length x average width x average depth x 6.25

UV
Unit
(watts)
Maximum
Pond size
(Gallons)

RRP
(inc VAT)
(£)

KWG Price
(£)

11

650

91-89

59-99

15

1500

118-62

79-99

25

2000

145-44

94-99

30

3000

189-28

119-99

55

4000

206-72

134-99

60

6000

355-67

239-99

110

8000

454-77

289-99

 

UV bulbs require replacing every 5000 hours (approx 6 months). The bulb will still light after 6 months, but an insignificant amount of UV will be omitted.

UV Size (watts)

Bulb
(£)

Quartz
(£)

Electrics
(£)

O Rings
(£)

4

9-99

n/a

n/a

1-50/pair

6

8-85

15-00

n/a

1-50/pair

11

10-99

15-00

48-99

1-50/pair

8

8-99

15-00

n/a

1-50/pair

16

10-99

15-00

n/a

1-50/pair

15

10-99

20-00

49-99

1-50/pair

25

15-99

20-00

59-99

1-50/pair

30

15-99

35-00

62-99

1-50/pair

55

19-99

35-00

74-99

1-50/pair

5

12-99

n/a

n/a

n/a

9

14-99

n/a

n/a

n/a

11

17-99

n/a

n/a

n/a

13

19-99

n/a

n/a

n/a

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