8
outlet of the union tee is connected to the pressure tank (by means of yellow tube running
to the tank valve 6), and the third outlet of the tee is connected to carbon post-lter 10.4. All
described components are connected to one another with exible tubes.
The purpose of the pressure tank 2 is accumulating and storing puried water, the need
for which arises due to slow nature of reverse osmotic purication of water. For instance, if
the system is tted with a 50 gpd membrane, 200 ml cup will take over 1,5 minutes to ll if
the membrane was directly connected to faucet without a tank. In order to compensate for
the small production rate, drinking water is puried in advance and stored in the tank, which
is pressurized so the water will run at an ample rate. When completely drained, the pressure
tank takes about 1,5 hours to ll.
Concentrate with the retained impurities is discarded from the second outlet in membrane
housing, connected with the drain saddle 8 with the black tube. In order to operate properly,
the system requires a backpressure on concentrate line, which is created by ow restrictor
14 — a plastic insert with calibrated throttle orice. Flow restrictor is inserted in the black
tube and must face the membrane housing when the tube is connected.
When faucet is opened, puried water is drawn from the pressure tank through the post-
lter 10.4. Рost-lter is a coconut shell activated carbon lter. Its purpose is to remove any
taste and odor imparted to puried water while in the tank, especially if stored for longer
periods of time and/or at warmer temperatures. Carbon taste and odor lter outlet is
connected to the faucet 3 by means of blue tube.
Additional equipment
Booster pump 16 for reverse osmosis system is an option. It is purposed to increase feed
water pressure in the system in case supply pressure is not sucient to operate the system
with the specied rate of drinking water production. We recommend that you t your system
with a booster pump or purchase an RO system with a booster pump if the pressure in your
water supply line is less than 3 bar.
UV disinfection unit 17 is an option. The unit is necessary when protection against
emergence of downstream microbial contamination is essential.
Re-mineralizing lter 15 is an option and is included in models that produce mineral-
enriched water alongside regular reverse osmotic water.Mineral composition of water
(approximate) after re mineralizing is specied on product label.
