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Your uS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below
DE kills insects by drying `em up
Apply up to 4 times per year
Gravel Roads
Carl Pool Hydroponic Special 4-18-38 Water Soluble Fertilizer Size:25 Pound Bag Your uS/cm reading can beFrom Texas based crop specialist Carl Pool comes a water soluble fertilizer that serves as a complete nutrient source for a wide variety of crops grown in both hydroponics systems and and soil based agriculture. Carl Pool 4 18 38 Hydroponic Special is a complete blend of essential plant nutrients including magnesium and sulfur with no need to add Epsom salt (magnesium sulfate) to create a Part B of a two part nutrient solution. Carl Pool 4 18 38
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