handle the membrane by the end stems. The membrane is inserted into the housing o-rings first so the
stem without the o-rings is visible. Replace the membrane cap firmly but do not overtighten.
(c) Post Filters
The system is supplied standard with an inline 2.5” GAC filter. These are also available as a DI cartridge or
a Remineralising cartridge – the installation principle is the same.
These filters are generally pre-installed. When you need to replace them, simply disconnect the tubing from
each end and remove the fittings from the filter. Replace the fittings into the new cartridge then re-install.
If the system is purchased with a DI filter, this GAC filter is removed and there should be a open end of
tubing at the top of the system which is the outlet.
(d) De Ionising Post Filters
For DI Cannister filters – temporarily run a small length of tubing form the systems outlet to flush the water
from the system before installing the DI system. This ensures that and TDS contamination in the system
does not expire any of the DI filter media. Flush the system until the TDS shows a > 90 % Reduction in
TDS compared to the raw inlet water. (minimum 30 minutes). After the flushing is finished, plug the ¼”
tubing into the DI filter and run a length of tube to your tank/container or float valve.
Connecting the System
I. Tubing
Measure a length of tubing (Blue 3/8”) from the feed water connection to the system. Cut the tubing using
poly cutters or a sharp box cutter. Ensure that it is a clean straight cut with no rough edges.
Measure a length of ¼” tubing from the drain valve (located under the membrane) which is marked as ‘to
drain’ or ‘Flow 1000’ to a suitable drainage point.
Measure a length of ¼” tubing from the outlet point of the system to your intended usage point or storage.
II. Power
The system is supplied with a 3 pin AU plug. Install this into a GPO (10A min). It is advised to also install a
surge protector to protect the electrical components of the system in the event of a power surge or
blackout. NOTE: If there is any damage to the cord DO NOT install – contact the manufacturer immediately
Start Up & Operation
I. Commissioning
NOTE: New filtration systems will require a pre-flush before being used. The GT1-20LS system will need to
run for at least 15 – 20 minutes before first use to clear and residue or fines from the filters.
•
Use a TDS meter to monitor the water to determine when the system is suitable for the intended
application.
•
When the system is connected correctly, turn on the incoming water supply and allow the first filter
cartridge to fill with water. Once this has stabilised, turn on the power to the system.
•
Turning the power on will actuate the inlet solenoid valve and the water will then begin to pass
through the remaining 2 pre-filters then to the membranes.
o
The pumps will turn on at this point
•
Once the water reaches the membranes, the drain line should begin to sputter and produce water –
it is normal for this to be cloudy and discoloured on first use.
•
At this point, the water will then need to slowly pass through the membranes and post filter so the
system will need to run for several minutes until water will begin to flow.
Your water is now suitable for use.
II. General Operation
The rating of this Reverse Osmosis system is 200GPD as per the membrane specifications meaning this
system is capable of approx. 0.5L/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
