The hose and PVC are positioned as shown so that the sanded band on the left can easily be covered in glue.

Shift the PVC to the left to get the glued strip under the PVC.

Getting glue on the band on the right is more difficult.
A wooden peg is twisted into the gap in the PVC so as to open the gap wider. This allows the glue to be applied to a sector of the hose, and then the hose is rotated so the next sector can have glue applied. The wooden peg prevents the edges of the PVC gap from scraping the glue off the hose as the hose is rotated.
All of the sanded band on the right must be glued.

After the glue is applied to both bands, two hose clamps are put around the PVC. Check that the rectangle in the PVC is located at the top of the layflat hose. (This assumes that the hose will be mostly pointed upward).

The clamps squeeze the PVC completely shut around the hose.
The hose may be rotated by the clamping.
Try to keep the PVC rectangle over the top of the layflat hose.

The assembly must dry OVERNIGHT.

The next day, cut a small rectangle in the hose that is 3/4 in
(20 mm) wide, and 1/2 inch (13 mm) high. The rectangle must be centered in the larger rectangle in the PVC.

The cutting of the rectangle is done after the gluing to insure that the rectangle is centered in the larger rectangle of the PVC.

Next, place two dots that are 1 1/4 inches (32 mm) apart, and centered in the PVC rectangle. THIS IS THE MOST IMPORTANT MEASUREMENT IN THE ENTIRE BUILD PROCESS.
These dots will be used to align the piece of hose that will be placed on top the the PVC rectangle.

This patch of hose is used to test that the glue between the hose and the PVC has no leaks.
It is wrapped around the PVC and is centered over the rectangle.

Its width is 3 1/2 inches (90 mm)

and length is 7 1/8 in (180 mm) 


The patch of hose is tightly clamped around the main hose and the PVC.

The outer two clamps simply go around the hose patch.
The inner two clamps press four metal rods against the PVC.
This arrangement should prevent water from the hole in the hose from leaking out, and is a test of the glue between the PVC and the hose inside of it.

There may be tiny leaks coming from between the PVC and the top layer hose patch, but these will not be a problem.

The gluing should be tested at a high enough pressure.

After you have successfully glued several nozzles, this testing step can be skipped.

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