Introduction: To control the microbiological quality of water in semi-deep manual wells, water tanks as well as directly in accessible sources, it is necessary to follow a standardized sampling. By designing and making suitable sampling apparatus, a principal sampling will be possible.Methods & Materials: It is fully innovative to design such a device with a protective box, charger and up-pulling and down-ruuning system. The device, using an electrical rechargeable battery, opens and closes the sampling bottle cap on any given depth of water.Finds: The mentioned apparatus with its expected capabilities was invented and tested under qualified referees. The device has been made in a way its down- running part, due to its contact with water, is sterilizable in ovens. Conclusion: This device is able to take samples at the depth of over 20 cm. in water, so that the bottle cap opens at the same depth and shuts down after taking the sample considering the weight, capacity, and delicacy. There are some problems with this device, but improving suggestions to obliterate the defects, such as using fiberglass in making process, have been presented.