SpectraPure
®
Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
sales@spectrapure.com www.spectrapure.com
13
SpectraPure
®
THE MANUAL FLUSH VALVE:
The Manual Flush Valve is located in parallel with the flow restrictor (see
page 9) and, when opened, provides a high-flow bypass of waste water
used to purge concentrated brine from the membrane housing and rapidly
flush any particulates from the membrane surface. This is especially useful
in hard water conditions. The valve can be turned ON for 30 seconds at
the start of a fill cycle and/or at the end of a fill cycle.
NOTE: Be sure to turn the flush valve back to the “closed” position before
making product water. You do not have to turn the system off to
change the position of the flush valve.
NORMAL POSITION (closed)
When the flush valve is in the “closed” position, the water flows through
the flow restrictor (located in the Red or Green tubing) which creates back
pressure in the membrane housing and forces the water through the RO
membrane. This is the normal position to make purified water.
FLUSH POSITION (open)
When the flush valve is in the “open” position, the unimpeded water flows
out of the membrane housing and directly down the waste water line.
This serves to rinse the accumulated impurities and concentrated waste
water from the surface of the RO membrane to help increase the life of
the membrane.