Info¶

First find the length of the overall rod configuration from rod tip to the desired mark on plumbing rod. To find this lay the configuration on the ground and place a third rod at the desired mark, perpendicular to the plumbing rod. Take a tape measure and measure from rod tip to the third rod.

With this rod height and with the help of a tape measure you can begin inverting. Add and subtract relative to the desired mark on the plumbing rod.

If desired mark falls below the rim, then add (example add 1.4ft from a 7ft configuration = 8.4ft depth)

If desired mark falls above the rim, then subtract (example subtract 1.2ft from a 7ft configuration = 5.8ft depth).

To get a pipe measure, first get the pipe invert measure, then push the rod tip upward towards the inside upper lip and measure. ( "pipe invert depth" - "upper pipe lip depth" = "pipe size" )

Part 2 of the training series

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