Troubleshooting – General Hydroponics RainForest 36 User Manual
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Sympton: Various signs of plant disease (only
one of the six plants may show
symptoms)
Cause:
Infected plant
Remedy:
Extract the diseased plant intact by
pulling the pot. If necessary, lift the
motor housing to collect infected
roots through the opening. Discard
the plant, disinfect and rinse the pot,
replace the nutrient solution and
start with a new seed or cutting.
Sympton: Discolored leaves, leaf-tip burn,
deformed young leaves
Cause:
Deficiency or toxicity
Remedy:
Discard nutrient solution, rinse roots
with tap water and use distilled or
purified water to mix fresh nutrient
solution
Sympton: White buildup on support foam in pot
holders, on top of unit and on under-
side of lid
Cause:
Salt deposits resulting from exces-
sive nutrient strength or heavy min-
eral/chemical content in water
Remedy:
Use distilled or purified water
TROUBLESHOOTING
Sympton: Wilting
Cause:
Excessive heat
Remedy:
Move to cooler location
Cause:
Excessive cold;
Remedy:
Move to warmer location
Cause:
Low humidity
Remedy:
Mist plant foliage regularly
Cause:
Low water level
Remedy:
Add water for proper aeration
Sympton: Yellowing:
Cause:
Low sunlight
Remedy:
Move unit or add supplemental lighting
Cause:
Exhausted nutrient
Remedy:
Drain and renew nutrient solution
Sympton: Nutrient isn’t getting to roots
Cause:
Pump is not working properly
Remedy:
Make sure that nutrient is above the
“low” level mark and that the pump is
not clogged. Check the plug and
electricity source. The pump rarely
fails completely. If it is damaged (for
example, from operating dry), you
can replace all its moving parts with
a General Hydroponics Pump
Rebuild Kit. To disassemble the
pump, remove the intake elbow, then
rotate the impeller housing on the
pump 90 degrees clockwise and pull
it off the pump body. Pull out the
impeller assembly and spin it on its
shaft to make sure it spins freely and
does not wobble. If it does wobble,
the assembly must be replaced. This
usually occurs only if the pump has
been running dry.
Pump Output
Air line
electric pump cord
(110 vac)
drain/level tube
low mark
high mark
clip
grommet
electric pump cord
(110 vac)
spray diffuser
growing cup lid
reservoir container
reservoir cover
Your RainForest Model 36 consists of the following components:
• Reservoir container with drain/level tube indicator
• Motorized spray pump
• Reservoir cover (with 6 plant sites)
• Six growing cups and cup lids
• Hydroton and polywool
• Flora Series Nutrient Kit
cup with Grorox and poly-
wool for starting seeds.
cup with lid for rooting
cuttings.
Align pump output so it can
shoot straight up at spray
diffuser on reservoir cover.
** IMPORTANT **
intake filter
Pump assembly sits inside reservoir container