Critical step please follow these instructions carefully.
Step 6: Preparing the vertical water supply line and checking for leaks
In Step 2, the vertical water supply line was cut to be approximately 10 inches (254 mm) above the concrete slab. In this step,
you will add the NPT fitting and any adapters needed first, measure and then cut it to a precise length. For the easiest
installation, the vertical water supply line with all fittings and adapters should measure exactly 8.75 inches (222.3 mm) from
the top of the concrete to the top of the last fitting.
When completed, the installation should look like this:
To achieve this, please closely follow these instructions:
Attach any adapters that are needed to enable the vertical water supply line to receive a ½ inch NPT male fitting. Do not
a
glue the adapter to the line.
Attach a ½ inch NPT male fitting onto the end of the vertical water supply line. Do not glue the fitting to the line.
b
c
With the NPT fitting and all adapters attached, measure the length of the line from the top of the concrete to the top of
the fitting.
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