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- 14 - 

 

 

Troubleshooting  

This is a listing of some common problems, their causes, and the appropriate remedy.  For conditions 

other than those listed here, contact your GRO sales representative for guidance. 

 

NOT MAKING ENOUGH WATER  

1.  Reject ratio too low 

2.  Product line blocked 
3.  Pressure too low 
4.  TDS too high 
5.  Membrane fouled 
6.  Prefilter plugged 

7.  Pressure tank has too much air pressure (if used) 
 

MAKING TOO MUCH WATER

 

(possible reasons) 

1.  O-ring by-pass on membranes 

2.  Chlorine damage to membranes 
3.  Temperature increase 

4.  Reverse flow through membrane (causing a rupture in the membrane) 
 

PERMEATE TDS TOO HIGH

 

(possible reasons) 

1.  O-ring by-pass in RO membrane assembly 

2.  Chlorine damage to membranes 
3.  Membrane fouling 
4.  Ruptured membrane 
5.  Increase in feed water TDS 

6.  High pH in feed water (over 9.0) 
 

PUMP CYCLES ON AND OFF

 

(every few seconds) 

A defective pressure switch could cause the pump to cycle rapidly on all models.  Check for leaks in 

the product line.  If there is a pressure tank in line, be sure it is properly pressurized. 

Содержание GRO

Страница 1: ...mo os si is s W Wa at te er r T Tr re ea at tm me en nt t S Sy ys st te em m I I N N S S T T A A L L L L A A T T I I O O N N O O P P E E R R A A T T I I O O N N A A N N D D M M A A I I N N T T E E N N...

Страница 2: ...this manual The Seller reserves the right to make enhancements or changes that may not be included in the manual Therefore it is understood that the material presented here is subject to change withou...

Страница 3: ...y Electricity and water DO NOT MIX Every effort is made to insure that the electrical equipment on our systems is resistant to water intrusion Once installed the system is subject to many factors beyo...

Страница 4: ...nts Section Page System Specifications 5 Installation 6 Operation 9 System Maintenance 10 Cleaning 12 Troubleshooting 14 Drawings GRO 150 700 RO PSI Diagram GRO 150 700 RO Unit Layout GRO 150 700 Elec...

Страница 5: ...2 1 97 3 8 1 4 1 4 Note 1 Product flow is the MAXIMUM recommended flow 2 Reject flow is the MINIMUM recommended flow 3 Pump pressure must not exceed 200PSI 13 4 Bar Typical Operating Parameters SPECIF...

Страница 6: ...zes a booster pump in an enclosed area be sure that there is adequate ventilation to dissipate the heat from the motor Otherwise the heat buildup can weaken the plastic tubing and may cause it to burs...

Страница 7: ...atic carbon filter is used it should be set to regenerate when the RO unit is not running usually at night Hookups 1 Supply Connect the carbon filter to the GRO unit at the prefilter using non corrosi...

Страница 8: ...irecting the water to drain 2 Connect the tank from the inlet to outlet and run the water through the tank for an additional 5 minute rinse to drain Failure to follow backwash and rinse the carbon tan...

Страница 9: ...ortant when determining the system s performance over time For the most accurate TDS readings let the GRO unit run for at least 15 minutes Unit Shutdown The standard GRO system with no options is turn...

Страница 10: ...Feed water temperature should be kept below 100 degree F 37 5 degrees C Membranes Always keep moisture in the membrane pressure vessel and always keep the ends plugged be careful not to cross thread o...

Страница 11: ...r sequester calcium carbonate ferrous iron and calcium sulfate from the feed water via water softening or an anti scalant chemical feed system Use test kit to check water quality Follow these basic gu...

Страница 12: ...n at 25 degrees C 2 TDS level increase As the TDS Total Dissolved Solids level climbs the amount of water passing through the membrane decreases If the TDS level has climbed since the time of installa...

Страница 13: ...he cleaning solution mix sodium hydroxide NaOH with RO product water 2 gallons of water per membrane to obtain a 0 1 solution pH 11 12 30 degrees C maximum water temperature 3 Once the solution is mix...

Страница 14: ...R possible reasons 1 O ring by pass on membranes 2 Chlorine damage to membranes 3 Temperature increase 4 Reverse flow through membrane causing a rupture in the membrane PERMEATE TDS TOO HIGH possible...

Страница 15: ...15...

Страница 16: ...16 Rev 4 October 2018...

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