Permeate Flush
Permeate Flush is standard for our RO systems that can provide a membrane flush directly after
shutdown. Permeate means “Product Water”, therefore we call this system Permeate Flush since it is
using the product water to flush the membranes after shutdown. This is extremely effective when
taking membrane life into consideration. If dissolved solids from the feed water are elevated this
critically impacts the membrane’s life. This may not always be from the total dissolved solids
(TDS).
Other cases have a particular element such as silica. When this is elevated our permeate flush is
used to release it from the membrane after shutdown. If concentrated solids are left in the membrane
housing after shutdown they can fall out of solution. When this happens, the solids remain in the
membrane housing until the RO system starts up again. This then causes them to be pushed into the
membrane instead of being flushed out as they would be during normal operation. These solids then
build up inside the membrane reducing the lifespan and possibly causing damage.
KEY FEATURES AND BENEFITS
A Green Solution
Our Defender RO is up to 65% efficient
Commercial Pump and Motor
At the heart of the DEFENDER HD is a true commercial centrifugal pump. Compared to rotary vane and
diaphragm pumps which offer no longevity. In fact, they frequently must be replaced every six months or
so, and our centrifugal pump does not.
Panel-Mount
Flow Meters and pressure gauges with 316 stainless steel needle valves for precise control of production
and wastewater
5-Micron Magna Pre-Filter
With 36 square feet of media for long life
Fiberglass Membrane Housing
These housings provide the best longevity with ease of replacement
Highest Rejection Rates
Up to 99% rejection
Defender Controller with TDS Meter
Enables you to continuously monitor water quality
Best Warranty in the Business
Two years on the system (does not include consumables such as membranes and filters)
