Application:
As little as .2 ppm of Hydrothol will control algae when the entire pond is treated. For longer term control or spot treatments use .5 to 1.5 ppm. When treating weeds use .5 to 2.5 ppm. When treating at rates of 1 ppm or greater and fish are present, treat only 10% of the pond at a time. To determine lbs. of material needed, multiply the application rate in ppm by 5. This will give you the number of lbs. to use on 1,000 sq. ft. with an average depth of 4 ft. Double the dosage rate when treating areas greater than 6 ft deep.

Please remember to follow all label instructions.

Environmentally Sound:
Hydrothol quickly dissipates in the environment. When properly used, Hydrothol provides excellent algae and weed control. Hydrothol does not bioaccumalate in either fish or the hydrosoil, and has a short half-life of less than seven days.

Versatile:
Due to the fast activity of Hydrothol, it can be effectively used in slow moving water, such as drainage and irrigation canals. In addition, spot or marginal treatments are highly effective against noxious weeds and algae in lakes and ponds. Hydrothol is effective in muddy or murky water because it does not bind to the suspended sediment or organic matter.

Restrictions:
Water treated with Hydrothol 191 should not be used for irrigation for 7 to 25 days depending on the dosage rate. Fish from the treated area should not be consumed for 3 days. 10 lbs. treats 1,000 to 4,000 sq. ft.

View the MSDS Information

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