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Rainbow \"Off\" Line Feeder / Chlorine or Bromine

 

 

 

 

 

 

 

 

 

 

 

     

Rainbow clear sided "OFF-LINE" chlorine feeder

An off-line chlorinator is one which is free-standing and has tubing that connects it to the pool system.  The one pictured to the right is a Rainbow 300 off-line chlorinator.  This is the one we most often recommend for home pools.  

Because of the way this one is plumbed, it does provide better water flow through the unit than the Rainbow 320 inline feeder.  This unit is still susceptible to developing an air pocket because if there is air in the line, it will rise to the top of the unit (because air is lighter than water), and an air pocket will develop.

 

Control Valves can be a bit of a problem on the offline chlorinators because you have non-filtered water going into the chlorinator.  Grass and other debris can get stuck in the valve and keep it from operating well.  If the valve will not fully open or close, then it probably needs to be replaced.

 

 

**Please be aware that a plastic Non-Return Valve must be installed immediately before any Chlorine dispensing units.**