Corporate
800.882.8854
20
Enhanced Trench Flush
The PurWater Enhanced Trench Flush has two purposes. The first one is to wash down the Conveyor trench after the
wash activation to the reclaim has turned off. This will run for the duration set on the HMI touch screen. The second is to
turn the water over in the reclaim tanks overnight. Water will sit in the Conveyor pit and the first couple reclaim tanks over
night not moving. This water will start growing bacteria (Anaerobic) over night and during the first hour of washing the
water may have an odor. The program turns on the Enhanced Trench Flush every 30 min and runs it for 5 min aerating
the water flowing in the tanks and turning the tanks over. The Enhanced Trench Flush timer is adjustable. The deration
between activation and the run time is adjustable (see picture of screen below). If this option is ordered the PurWater
Reclaim is Pre-built with a DIN cord for the solenoid connection for an easy connection once the hardware is installed.
Operation
The reclaim system will open the 1 ½” valve on the enhanced trench flush. During this operation, the reclaim pump
will maintain a line pressure of about 40 PSI. The water going through the valve will be fed down to a ball valve. This
ball valve is there to adjust water flow to the trench. With this ball valve open full you will get 45 GPM at 40 psi. A 1 ½”
Mazzei is after the valve to aerate the water. The Mazzei will pull 26.7 SCFM of air into the water stream. After the flush
turns off the solenoid will close and the reclaim pump will ramp back down to its recirculation speed. If at any time a wash
activation turns on, the trench flush solenoid will close, and the reclaim treated water will be directed to the car wash.
After the wash activation is finished, the trench flush will turn on again for the set time. Detailed installation is included
when this option is purchased.
System Installation - Extras
Equipment View
To Trench
Trench View
The three nozzle manifold assembly is
pictured above and an active installation
is shown in the picture on the right. Note
that the manifold has a barbed fitting
(see arrow) and can be installed as
either “right or left handed” by rotating
the nozzles 180 degrees.
Install the
manifold at the “high” point of the
trench & flush toward the drain!
Summary of Contents for PURWATER RECLAIM 3.0
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