Greentrees Hydroponics MULTI FLOW HYDROPONIC SYSTEM Instructions Manual page 6

If you have cuttings ready to plant, fill the pots half way, place the cutting in the pot and fill the rest of the
way with the media.
Plug in the Drain pump, (the pump in the Controller) to the outlet labeled "Drain Pump".
Plug in the Fill Pump, (the pump in the reservoir) to the outlet labeled "Fill Pump". If the Level Controller
is not near the reservoir, you may need an extension cord (not supplied).
Fill the reservoir with water to about two inches from the top. We recommend adjusting the pH of the
water to 6.3 before and after adding nutrient. Add nutrient according to the instructions on the label.
Hydroponic nutrient is most soluble at 6.3 pH. Adjusting the water before adding nutrient will make the nutrient
dissolve better than not adjusting first. You should also adjust after because the nutrient itself will make the pH
change.
Prime the pumps. When a pump is started for the first time or if it has been allowed to run dry, the impeller
chamber is full of air. It might not pump water until the air has been pumped out of the impeller chamber. You
can apply power to the pump when it's submerged and simply jiggle the pump or the tube to get the air out.
Always keep the pump inlet submerged so it does not pull in air.
Plug in the power cord and set the timer to the time of day. Only
turn the dial in the direction of the arrows! Push the pins out to set
the watering times. One pin will turn on the system for 15 minutes and
fill the pots. It will drain automatically after the 15 minutes is up. 30
minutes may be needed for the 48 pot system fill completely. If so, push
out two adjacent pins. If you want the system to water three times a day,
just push out the pins at the desired time in the dial.
If the drain pump is turning on and off every few seconds, this could be an indication that the water is
siphoning into the controller from the reservoir after the drain pump turns off. This is usually caused by a
missing fill/drain tube mount, a tube mount that's not mounted correctly causing the siphon break to fail, or a
siphon break hole that's obstructed. The fill/drain tube mount must be mounted with a screw to keep it from
becoming submerged when the reservoir is full.
Incorrect
Common Setup Errors
A fill/drain tube
mount not secured
could become
submerged causing
water to siphon
into the controller.
Correct
Page 6
Fill/drain tube
mount secured
with a screw
above the water
level.