Ponds and Water Gardens - Tannin in Large ponds

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bartflyfish
07-31-07, 02:27 PM
I have three large (90,000 gallon) recirculating ponds that have a significant tannin problem (yellow-brown water). I have seen several home solutions but have not been able to find a solution for such a large application. Does anyone know if there is something of a reasonably priced commercial like solution.

waterwarrior
08-08-07, 02:05 PM
Ozone is great for oxidizing tannins and clearing up water. A company called (NO ADVERTISING IN FORUMS) makes a "sub-industrial" size ozone unit that produces about 2-3 grams of ozone per hour using 4 ultra-violet light bulbs. This should clear up your water.