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What will happen if a brine seal is not located on the feed end or not with the concave side facing the feed flow? How can you diagnose if a brine seal is damaged or does not seal properly?
The purpose of the brine seal is to ensure that the feedwater will pass through the scroll end of the element. Water will always find the path of least resistance and ......
Not Rated Last Update: 2009-05-18 Views: 1
What is the difference between the pump controller supplied at FCI and the pump controller offered by Carlos Castilla in the Yucatan?
Carlos\' pump controller worked OK but had some features that Bill Harney did not like.  When you turn off the power to the controller you have to hit reset to get it ......
Not Rated Last Update: 2009-05-18 Views: 2
What are the operating limits for the DOW TW30-4040 RO Membrane?
Keep in mind these are the membrane manufacturer’s limits.  Specifications for membranes will differ by type of membrane and RO unit.    For example, LWW ROS systems usually have a maximum ......
Not Rated Last Update: 2009-05-18 Views: 3
What is reverse osmosis?
Reverse Osmosis (RO) is the process in which water is forced by pressure through a semi-permeable membrane.  Water passes through the membrane while the dissolved and particulate materials are left behind.  ......
Not Rated Last Update: 2009-05-18 Views: 1
What do I need to know before I talk to a vendor about RO?
In preparation for talking to an equipment vendor or engineer about Reverse Osmosis equipment, they may ask you a few questions to properly specify the equipment you need to do the ......
Not Rated Last Update: 2009-05-18 Views: 3
How can I tell if the RO filter element is plugged or impairing the operation of the Reverse Osmosis unit?
In order check the condition of the RO filter, turn on the main system pump (raw water pump).  Leaving the RO unit power off, open all the valves that stop flow to the RO input.  ......
Not Rated Last Update: 2008-08-01 Views: 1
How do you calculate the number of batches that can be processed before regenerating the softener?
The formula for calculating the time between softener regeneration is straightforward.   First you must change hardness as expressed in mg/l (milligrams per liter or parts per million) to hardness expressed ......
Not Rated Last Update: 2008-07-02 Views: 2
What’s the “Reader’s Digest – Condensed” version of the Clean in Place procedure for RO Units?
The Clean in Place cartridges are one time use.  They screw right onto the filter connection on the RO unit itself in place of the blue filter cartridge.  The \"powder chemical\" ......
Not Rated Last Update: 2008-07-02 Views: 1
What about RO electrical specifications?
Most in-country equipment vendors should be able to supply equipment that is consistent with local electrical service and codes.  If they are unable to supply equipment that does not match the ......
Not Rated Last Update: 2008-07-02 Views: 1
What other questions might an equipment vendor ask me when discussing RO equipment specifications?
The equipment vendor may ask you the temperature and pH of the water to be processed.  Both parameters affect membrane performance.  RO Units that process water outside of 59 – 65 ......
Not Rated Last Update: 2008-07-02 Views: 1