Ridge Tool Company
12
Controlling the Sonde from a SeeSnake CCU is de-
scribed in the Operator's Manual for the CCU and de-
pends on the model being used. Typically, the Sonde
can be turned on and off from the CCU. If you are using
the microDrain System with the microEXPLORER Camera
hand-held monitor, the Sonde is activated by turning the
LED brightness control down to zero. Once the Sonde has
been located, the LEDs can be returned to their normal
brightness level to continue the inspection.
When the microDrain System Sonde is turned on, a lo-
cator such as the RIDGID SR-20, SR-60, Scout, or
NaviTrack
®
II set to 512 Hz will be able to detect it. The
most workable approach to tracking the Sonde is to run
the pushrod into the pipe about five or ten feet (1.5 to 3
meters) and use the locator to find the Sonde's position. If
desired, you can then extend the pushrod a similar dis-
tance further down-pipe and locate the Sonde again start-
ing from the previous located position.
To locate the Sonde, turn the locator on and set it to
Sonde mode. Scan in the direction of the Sonde's prob-
able location until the locator detects the Sonde. Once you
have detected the Sonde, use the locator indications to
zero in on its location precisely. For detailed instructions
on Sonde locating, consult the Operator's Manual for the
locator model you are using.
Retrieving The Camera
Once the inspection has been completed, pull the pushrod
back with slow, steady force. Continue running water
down the line if possible to help clean the pushrod. A towel
can be used to wipe off the pushrod as it is withdrawn.
Pay attention to the force required to withdraw the
pushrod. The pushrod may get hung up while being re-
trieved, and may need to be manipulated as done during
insertion. Do not force the pushrod or exert excessive
force. This could damage the camera or pushrod. When
pulling the pushrod, keep clear of any sharp edges and do
not pull at sharp angles to the inlet to prevent damage to
the pushrod.
As the pushrod is withdrawn from the inlet, feed it back into
the drum.
Using Guide Tubes
To avoid marring or scratching toilet bowls or other porce-
lain surfaces or to avoid sharp edges at the inlet you
may find it valuable to have a guide piece fabricated
from PVC or flexible tubing. Two possible types of guide
tube are shown below in
Figure 23.
Figure 23 – Guide Tubes
The PVC tube guide is fabricated from sections of PVC
pipe and conduit so it has a curved access tube at the
bottom which guides the pushrod and cable past the
scratchable surface of the toilet
(Figure 24).
Figure 24 – Using A PVC Guide Tube
The flexible guide tube is fashioned from ribbed flexible
conduit, and is used in a similar fashion
(Figure 25).
Figure 25 – Using The Flexible Guide Tube
SeeSnake
®
microDrain™ Inspection System
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