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Les langues disponibles
DUROclean IF
Item
Model No.
No.
Description
3230
DIF75
3240
DIF75M
3231
DIF10
3241
DIF10M
3232
DIF15
3242
DIF15M
3233
DIF20
3243
DIF20M
•
Peak flow rates intended for intermittent use only (10 minutes duration or less). For satisfactory operation, pumping rate of well system must equal indicated
backwash flow rate.
•
Models ending in "M" are required when raw water has up to 1.0 mg/l of manganese or when pH is below 7.0. Over a period of time, it may become
necessary to add more media to the unit. An ML-1 media loader is available. Adding media is necessary only when water has low pH or manganese is
present.
•
The manufacturer reserves the right to make product improvements which may deviate from the specifications and descriptions stated herein, without
obligation to change previously manufactured products or to note the change.
Read this manual carefully and follow the installation steps in order.
How Your Chemical Free Iron Filter Works
The chemical free iron filter consists of two major components which are:
1. A hydrocharger, located between the well head and the pressure tank, adds a small amount of air to the iron-laden water
whenever the pump runs. Refer to Figs. 1, 2 or 3 on Page 5 for its location.
Note: If your pump system is a constant pressure or variable frequency drive (VFD) the hydrocharger supplied
with this filter will not operate properly. The system will require the addition of an air pump and vent tank to
introduce the needed air into the water system. Refer to page 4 for more information.
2. A backwashing type filter containing special media that causes the iron in the "hydrocharged" water to precipitate
throughout the filter bed (rather than on the surface as in chemical oxidizing filters). This process produces an iron removal
capacity of up to 30,000 ppm. The media requires no chemical regenerant for oxygen enrichment.
Your filter automatically adjusts the pH to neutral or higher on acid water without an acid neutralizer. The ability to raise pH
when it is below neutral (7.0 or less) greatly enhances the filter's ability to remove iron efficiently.
The clean, filtered water then flows into your household water line. Depending on water use and the concentration of iron in
your water, periodic backwashing is required to flush the entrapped iron from the system. The filter control can be
programmed to backwash once every two, three, four, six or twelve days as required (instructions for calculating backwash
frequency and setting the controls are on Pages 9 and 10).
NOTE: Replenishment of the media that raises pH will be required periodically, depending on how low the raw water pH is,
the amount of manganese (Mn) present in the water and the water usage rate.
Water Pressure
Your chemical free iron filter system is designed to operate under normal water pressures from 20 psi to 50 psi.
Backwashing and Automatic Bypass
Your filter is factory set to backwash at 1:00 a.m. during a period of little or no water use. The backwash cycle lasts
approximately 15 minutes, after which filtered water service is restored. While backwashing is taking place raw water
automatically bypasses the filter if required. If possible, avoid using water during backwashing to prevent iron- laden water
entering your household plumbing system.
New Sounds
You will notice new sounds, such as the hum of the timer, as your filter operates. During backwashing, it will not be
uncommon to hear water running to the drain.
Media
Pipe Size
Cu Ft
Inches
Continuous
.75
3/4
2
.75
3/4
2
1
3/4
3
1
3/4
3
1.5
3/4
4
1.5
3/4
4
2
1
5
2
1
5
Section 1: General Information
Flow Rates USGPM
Peak
Backwash
5
3.5
5
3.5
6
4
6
4
10
5
10
5
15
7
15
7
1
Fiberglass Tank
Iron Removal
Size - Inches
Capacity - ppm
8 x 47
22,500
8 x 47
22,500
9 x 48
30,000
9 x 48
30,000
10 x 54
60,000
10 X 54
60,000
12 x 52
90,000
12 x 52
90,000
Shipping
Weight - Lbs
110
110
145
145
250
250
365
365
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