Glue one end cap each onto 3 of the 12" Sched 40 PVC pipe sections.
Glue a Sched 40 PVC 'T' with the perpendicular port onto one 12"
Sched 40 PVC pipe section. These are the legs.
To assist in aligning the 'T' parts, stick (don't glue) two legs into
the 'T' that is glued to one 12" section. Stick (don't
glue) one leg into the perpendicular port of second 'T'.
Glue the second 'T' end port onto the 12" section connected to
the first 'T'. Use the legs to align the 'T' connectors
perpendicular to each other.
Pull the air valve stem through the hole in the end cap that was
drilled. Glue the 3.5" Sched 40 PVC pipe section into the
cap trapping the air valve stem. Be sure not to use excess glue
that might drip into the air passage way.
Glue the cut plug end off of the 1/2" Sched 40 plug into a port
on the 1/2" Sched 40 cross. Immediately glue the 2"
long Sched 40 PVC pipe section into the same port pushing the plug
all the way into the hole. Doing them both at the same time is
the only way to seat the plug all the way into the hole. Some plugs
are reversed so that the plug end is larger than the ID of the cross.
You can use a flat file to cut the diameter down so that it fits. Try
to find a plug that the plug end fits inside the cross making this
step much easier and faster.
Glue the air valve stem assembly into on port 90 degrees from the
Glue one cap onto 3 1/2" pipe. Glue the other pipe end into the
cross opposite of the air valve stem port.
Glue the second 2" pipe piece into the last open port of the
cross and glue one slip to threaded pipe adaptor on that pipe.
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