| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
|
Fig. 4. The airtight PVC well cap. The cap is sealed to the casing when the rubber gasket on the lower exterior of the cap is forced out against the 5-cm well casing by tightening the wing-nut. The one-holed, tapered rubber stopper is forced down into the tapered shaft by tightening the cap nut, thus sealing around the transducer leads. A stock rubber gasket from a mechanical test plug was used in this test.
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
