17
Revision date: 01.14.21
115141
Align marks with
nutrient holes.
10
Assembly Instructions
DRILL HOLES TO INSTALL THE 115820 GROMMETS
Complete these steps:
1. Verify NFT channels are located in desired positions.
2. Using a marker, mark two (2) hole locations along the bottom side manifold pipe
for each channel. Mark holes in the center of the manifold pipe.
Space holes 2"
apart.
Remove manifold from the frame using a small screwdriver to release the
jaws of each hanger.
3. Using a
3/8" drill bit
— a step bit is highly recommended — drill holes in PVC
tube for top hat grommets.
HELPFUL HINT:
To maintain hole
alignment, along the
bottom side, snap a
chalkline from one end
of the manifold tube to
the other. Use non-
permanent chalk. Align
marks with the nutrient
holes drilled into the
NFT channels.
ATTENTION:
If using a
twist drill bit (as shown),
apply slight pressure to
allow bit to cut a smooth
hole in PVC tube.
Step 4
Step Bit
Grommet to be tight to PVC tube.
115820
Grommet
IMPORTANT:
Verify
there is an open hole
through the grommet
before installing.
Puncture through if
necessary.
Step 6
Step 2
4. Remove elbow and cap and clean loose PVC debris from inside the tube and from around each grommet hole after drilling.
Holes must be clean and free of debris before installing top hat grommets.
NOTE:
Run a clean cloth through inside of tube, or rinse with water and allow tube to dry before assembly.
5. Insert one 115820 top hat grommet into each 3/8" hole in the PVC tube. Dip grommet in water for easier installation. Wipe
off chalk line if desired. Verify through holes in grommets. Puncture if necessary.
ATTENTION:
Grommet fit should be snug. If grommet seems loose or slides into hole with little effort,
verify you have drilled holes using a 3/8" bit.
Grommets will leak if hole diameter is too large.
6. Continue with next procedure.
