Vertical or Horizontal? Depends on the Water!
Water bottles can be either vertical, like Kemmerer bottles, or horizontal like Van Dorn bottles. Both are designed for grabbing a sample of water at a known depth in a body of water.
Vertical bottles (like the Kemmerer bottle pictured above) are best for sampling wells or other areas where you need a "narrow" sample. If you're sampling where the Yahara River empties into Lake Kegonsa, you would probably want to use a Kemmerer to take samples (1) where the river first enters the lake (2) where the river water mixes and (3) where there is only lake water.
Horizontal bottles (such as the Van Dorn bottle above) are best for very shallow water or if lakes are really stratified. You know how lakes develop a layer of warm water on top of cold water? Well, a horizontal Van Dorn bottle can get fairly accurate samples above, below and right at the line where the water mixes.
Information provided by Mr. Jack Schaffer
Vertical bottles (like the Kemmerer bottle pictured above) are best for sampling wells or other areas where you need a "narrow" sample. If you're sampling where the Yahara River empties into Lake Kegonsa, you would probably want to use a Kemmerer to take samples (1) where the river first enters the lake (2) where the river water mixes and (3) where there is only lake water.
Horizontal bottles (such as the Van Dorn bottle above) are best for very shallow water or if lakes are really stratified. You know how lakes develop a layer of warm water on top of cold water? Well, a horizontal Van Dorn bottle can get fairly accurate samples above, below and right at the line where the water mixes.
Information provided by Mr. Jack Schaffer
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