UV filters

Why is Ultra Violet (UV) filtration important?

Single cell algae form green water in garden ponds. This is not only unpleasant to look at, but at the same time contribute to lowering the “kh” value which is so important to fish health, and to the nitrification process within the filter system. Algae’s also lower oxygen levels, whilst meanwhile increasing “ph” levels – both of which are undesirable. The use of Ultra Violet is a safe technique used for obtaining clear water, and unlike many chemicals detrimental effects or pollution is impossible. In addition general plant and pond life are unaffected with a UV.

koi

The actions of ultra violet light onto single cell algae’s does not actually kill them, but converts the algae’s DNA structure to the point where they flocculate together, and thus form larger particles which will not so easily pass through the mechanical filter mediums. The amount of sunlight which the pond receives is the biggest of factors in the promotion of algae's, and for such reasons the selected size of a UV unit should take such environmental aspects into account.

UV's are also an established technique used to control the growth of harmful bacteria and pathogen in your pond.

Ultra Violet (UV) units

TMC Range
	Model	Volume (gal)	Power (watts)	Code
	Pond clear advantage	1,200	8	uvu-108
	Pond clear advantage	3,000	15	uvu-115
	Pond clear advantage	4,000	25	uvu-125
	Pro clear	6,000	30	uvu-130
	Pro clear	10,000	55	uvu-155
	Pro clear	16,000	110	uvu-210

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Stainless steel UV units
	Model	Volume (gal)	Power (watts)	Code
	SS UV	500	15	uvs-110
	SS UV	1,500	30	uvs-130
	SS UV	4,000	55	uvs-155
	SS UV	5,000	60	uvs-160
	SS UV	7,500	110	uvs-210
	SS UV	9,000	180	uvs-280
	SS UV	15,000	330	uvs-300