II. General Operation
The rating of this Reverse Osmosis system is 400GPD as per the membrane specifications meaning this
system is capable of approx. 1L/Min of water production, this will vary depending on water quality and a
number of factors. The systems are designed to be run in a closed loop configuration where the system
runs off a float switch or timer, this type of configuration allows for system downtime and helps extend the
lifespan of the pump as the system is intermittently producing water
When the system is installed in an open loop configuration and the pumps haven’t been allowed any
downtime you may expect to see a decrease in the pumps lifespan. If you intend to use the system this way
please contact us as we may have a better solution for your specific circumstance
Production scenario for closed loop configuration – The system is run for up to 8hrs a day with a 30 min
cool down period, in this configuration the system will produce approx. 500L +/- per day. This is the
recommended runtime scenario specified by the manufacturer for extended pump lifespan
Production scenario for open loop configuration – The system is run for continuously without a cool down
period, in this configuration the system will produce approx. 1500L +/- per day. This is the maximum
capacity of what this system can produce however this may also decrease pump lifespan*
*Note: the pumps come with a 90-day replacement guarantee/12-month pro-rata warranty per pump from
date of invoice. If the pump fails within the first 90 days of operation, we will replace it, if it fails from 90-365
days, we will cover it on a pro-rata basis. The pumps as well as the filters are classed as a consumable
item
III. Automation
The system is fitted with high and low-pressure switches. This will allow the system to know when to shut
off due to the tank being full, or the feed water has been shut off.
When power and water is connected to the system and the outlet is open, the system will automatically
produce water. When the outlet shuts off, the high-pressure switch will trip after a period of time (similar to
a household pump) and then the system will shut down. When the outlet is opened and the pressure falls
below the limit, the system will start up again.
Similarly, when the feed water is cut off to the system, the low-pressure switch will trip and the system will
shut off after a few seconds.
If installing this system to a float switch in a tank, you will need to disconnect the high-pressure switch and
connect the float valve terminals in its place. This will then run the shut off based on the float rather than
the pressure.
TIP: If the system needs to be shut down and serviced, a handy tip is to shut off the inlet water supply and
allow the pressure to bleed out (few seconds) before shutting off the power. This will make it much easier to
disconnect any fittings.
Maintenance
I. Replacement Parts
A list of replacement parts is listed below with their corresponding recommended lifespan for replacement.
II. Replacement Cartridges
On Municipal water supplied, the pre-filters should be changed every 45,000L (720 Hours constant Run
Time) OR 6 Months, whichever occurs first.
Post Carbon Filter:
This filter should be changed every 5,000L or 6 Months, whichever occurs first.
DI Resin:
Due to the nature of resins and the variance of water quality, this media will also need to be monitored with
a TDS pen or meter to determine when the filter media has expired. DI resin will extract residual ions from
