How to Use Coliwasa Sampler

1. Lower coliwasa to desired level and pull up on rod at top to open valve, or open valve before submersing.
2. Tug slightly on rope to raise the sampler. This will set the check valve, trapping the sample inside.
3. When clear of the tank or drum, dispense the sample into an appropriate container or Whirl-Pak™ bag.

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