UV intensity for outdoor pond

[Caliban07]

We have an outdoor pond around 600 gallons. It has a green water algae issue that used to be controlled by a UV steriliser years ago. I would like to add one back to the system but was wondering what power rating of UV bulb would suffice.


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[gemach7]

I use the tetrapond 9v on my ~1000 gallon pond. Is rated for upto 1800 gallons, seems to do the job.

 

[Caliban07]

I use the tetrapond 9v on my ~1000 gallon pond. Is rated for upto 1800 gallons, seems to do the job.

Thanks I'll have a look in to that.


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