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(A)

 

 SYSTEM SPECIFICATIONS  

 

Model 

No. 

Pot Perm Jug  

(5 lbs) 

FLOW RATE GPM 

(LPM) 

Well Pump 

Flow Rate 

Required 

US GPM (LPM) 

Inlet / 

Outlet 

Drain 

Connection 

Electrical 

Requirement 

Pressure 

Drop 

Operating 

Pressure* 

Shipping 

Weight 

Service 

Max 

CGFE948 

Included 

2.2 (8.3) 

5 (19) 

5 (19) 

3/4" 

MNPT 

1/2" Hose 

110V AC 

< 15 psig 

30 – 100 

psig 

140 lbs 

(63.5 Kg) 

CGFE948L 

Sold separately 

  Approx Potassium Permanganate (Pot-Perm) used per regeneration : 0.125 lbs (56 g) 

 

 

Note: 

Install pressure regulator and water hammer arrestor if pressure exceeds rated pressure at any time. 

 

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. 

 

 

Feed Water Quality: 

 

Water Temp – 

4

 - 

38°C (39 - 100°F)

 

 

Water pH Range – 

6.5 to 8.5*

 

 

Max Raw Water Turbidity – 

5 NTU

 

 

Max Raw Water Iron + Manganese – 

15 PPM

 

 

Max Raw Water Hydrogen Sulphide – 

5 PPM

 

 

Oil in Water – 

Nil

 

* - 

higher the pH, better the performance

 

 

 

(B)

 

 HOW THE CGFE SYSTEM WORKS 

 

Your  Rainfresh  CGFE  filter  utilizes  oxidation  and  filtration  technology  to  remove  dissolved 
Iron, Manganese and Hydrogen Sulphide from water. Rainfresh Greensand Filter is based on 
the technology of oxidation and filtration. It incorporates a special high-oxidant media called 
Manganese  Greensand.  When  water  flows  through  the  Greensand  filter  system,  dissolved 
Iron  and  Manganese  are  oxidized  to  insoluble  precipitates  by  contact  with  the  greensand 
media, and simultaneously filtered out. Hydrogen Sulphide is reduced to an insoluble sulphur 
precipitate, which is also filtered in the bed.  
 
Water coming out of the greensand filter is virtually free of Iron, Manganese and Hydrogen 
Sulphide. 

 

When  the  oxidizing  capacity  of  the  greensand  bed  is  exhausted,  the  system  automatically 
undergoes  a  process  called 

REGENERATION

,  during  which  it  backwashes  to  rid  itself  of  the 

trapped  Iron, Manganese &  Hydrogen  Sulphide  and  recharge  it’s  removal  capability  using  a 
chemical powder called POT PERM (Potassium Permanganate)  which is stored in a separate 
small container.  

 

(C)

 

SAFETY PRECAUTIONS

 

 

-

 

Follow all applicable province/state and local regulations.  

-

 

Handle the filter carefully. Do not lie on side, turn upside down, drop or drag. 

-

 

This Greensand Filter uses POT-PERM (Potassium Permanganate) to regenerate. Please handle POT-PERM carefully 
and store in a secure cool place where it cannot be misused or mishandled.  

-

 

Install a pressure regulator and water hammer arrestor if pressure exceeds maximum rating at any time. 

Note: 

If 

daytime pressure is over 80 psi, night time pressure may exceed maximum pressure rating. 

 
Cautions Before Installation 

-

 

To operate properly, the well pump flow rate must exceed the backwash flow rate (5 US GPM (19 LPM)). 

-

 

Warning:

  

If your well pump does not deliver this flow rate, do not install the unit as it will not work properly

.  

-

 

This system does not kill or remove bacteria or any other pathogenic microorganisms. To continuously disinfect all 
the water in your house, we recommend that you install a Rainfresh UV system. Call Rainfresh for details. 

-

 

For use on cold water only. 

 

Greensand  

Filter  

CGFE948 

Chemical  

Tank 

Summary of Contents for CGFE948

Page 1: ...Monday to Friday 8 30 AM to 5 00 PM EST www rainfresh ca TABLE OF CONTENTS A System Specifications 2 B How the CGFE System Works 2 C Safety Precautions 2 D Installation 3 a Electrical Requirements 3...

Page 2: ...d media and simultaneously filtered out Hydrogen Sulphide is reduced to an insoluble sulphur precipitate which is also filtered in the bed Water coming out of the greensand filter is virtually free of...

Page 3: ...ired How to check well pump flow rate must be more than 5 GPM 19 LPM Make sure that the pressure tank is full and no one uses any water until you have finished the test 1 Connect a hose to an appropri...

Page 4: ...NECTIONS WILL RESULT IN FILTER MEDIA BEING THROWN INTO YOUR HOME S PLUMBING SYSTEM CAUSING DAMAGE TO IT AS WELL AS THE Filter system You can use copper CPVC PVC or PEX to install your new system Insta...

Page 5: ...to the ceiling joists max 8 ft ceiling and run it to the nearest laundry tub or drain pipe This can be ran up overhead or down along the floor If running drain line more than 30 feet overhead increas...

Page 6: ...nsert Allen key into the bypass handles and make sure that the valve is in BYPASS position Turn on the switch for the well pump If you had emptied the pressure tank allow it to fill up until the well...

Page 7: ...ride 12 Delayed Regeneration 13 Regeneration Time 14 Refill Time 15 Valve Model 16 Valve ID The control valve has a display screen and 4 buttons PROGRAMMING I LANGUAGE SELECTION SETTINGS The function...

Page 8: ...urrent minutes TIME OF DAY 08 51 PM 7 Press SETTINGS key again and AM PM will be highlighted 8 Now press UP or DOWN key to change AM PM value to current time 9 Press SETTINGS button again and YEAR wil...

Page 9: ...ss SETTINGS again and this completes the programming LOAD DEFAULT NO PROGRAMMING COMPLETE Unlock display by pressing SETTINGS for 3 sec Press UP DOWN keys together for 3 seconds until unit beeps and d...

Page 10: ...s approximately 1 5 hours During this time you may hear water running intermittently to the drain Manual Bypass In the case of emergency such as an overflowing chemical tank you can isolate your filte...

Page 11: ...n frequency days between regenerations Therefore system should be set to regenerate 1176 240 4 9 days once every 4 days Do not change regeneration frequency to more than once every 4 days Winterizing...

Page 12: ...uildup in line feeding filter 2 Iron buildup inside valve or tank 3 Inlet of control valve plugged due to dirt 1 Clean replace supply line 2 Clean control valve increase regeneration frequency 3 Clean...

Page 13: ...13 PARTS LIST...

Page 14: ...t its option of any part found by company inspection to be defective provided that the product has not been misused abuse altered or damaged by Consumer with respect to the original installation as de...

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