SAMPLING DEVICE FOR SEPTIC TANKS

摘要

SAMPLING DEVICE FOR SEPTIC TANKS A transparent tube is provided with a closure plate at its lower end with the plate including a resilient pad for sealing engagement with the tube end. A plate control rod extends lengthwise along the tube and terminates upwardly in a handle which is perpendicularly disposed on the control rod in the same direction as the closure plabe to permit handle to serve as an indicator of the open or closed status of the submerged end of the tube. A spring component biases the control rod and closure plate upwardly to seal the tube lower end thereby confining the vertical cross sectional sample in the tube during sample evaluation.