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Jar Testing

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Choose Chemical Alum ACH-Alchlor Premium ACH-Alchlor Premium Gold Megapac 23 Megapac 10 Ferric Chloride Hypo Poly Other	Active Ingredient (%)
Concentration %:		Raw Poly volume:	mL (or grams)
SG:		Raw Poly SG:	(use 1 if solid)
		Tank / beaker volume:	mL
		Poly Concentration:	%
Step 1: Preparation of the stock solution
Add ml of chemical to an empty ml volumetric flask and top it up with distilled water to the mark. Shake the solution vigorously to mix. This is the stock solution for the jar test.
mg/L
Step 2: Determining the dose rates
Take required number of jars and fill them up with raw water. Compute required stock solution volumes below: Jar volume ml
Dose Rates: Required Stock Solution Volumes Jar 1    mg/L   ml Jar 2    mg/L   ml Jar 3    mg/L   ml Jar 4    mg/L   ml Jar 5    mg/L   ml Jar 6    mg/L   ml Add the above volumes of stock solution to the jars to obtain the required dose rate.
Step 3: Record the optimum dose rate
Optimum dose is the minimum dose required to produce the best water quality results.