If you have a WEDM, Install a secondary resin filter! -ask me how I know.

I just read this from
http://www.edmtodaymagazine.com/AAweb2_2010/TechTips2010/TechTips2008/TechTipsS-0-8.pdf

Add a Safety Screen To Your Resin System
Have you ever thought about the nightmare possibility of all those resin
beads in your resin tank being circulated throughout your dielectric system?
You can be sure that those shops who have had to pay a couple thousand
dollars for a factory service engineer to clean those beads from the
solenoids, lines, valves, flowmeters, pumps, filter housings, jet nozzles,
and numerous other components that make up the dielectric system have.
The center lance of a deionizing bottle contains a filter assembly that
keeps the beads in the tank from escaping. Sometimes rough shipping can
either dislodge the filter from the lance, or cause the lance to separate from
the tank head. If this happens, the machine will rapidly pump out the entire
contents of the resin bottle into your machine when the conductivity system
calls for deionizing.
The solution is an inexpensive secondary filter screen assembly that is
inserted between the outlet side of the resin bottle and the hose leading to
the machine. This secondary filter contains a clear bowl which allows you
to monitor the accumulation of resin beads on the screen. If the resin bottle
fails, the machine will cease deionizing, and you’ll see the screen clogged
with beads through the clear bowl.
The secondary filter screen is a cheap insurance policy that you can’t
afford to pass up.

I don't know if it is true or not but i have been told if you hook the resin tank up backwards it will have the same effect, of emptying out the resin. If true something else to watch out for. Later Jason.

demoj21 said:

I don't know if it is true or not but i have been told if you hook the resin tank up backwards it will have the same effect, of emptying out the resin. If true something else to watch out for. Later Jason.

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YES!!!!! That is how they get resin out of the bottles for regeneration. They "float" it out by running water through them backwards. An inline screen filter would be a bargain at $100, trust me. I've had to go in and clean up after "mishaps" and it is not a fun event.

MitsTech said:

YES!!!!! That is how they get resin out of the bottles for regeneration. They "float" it out by running water through them backwards. An inline screen filter would be a bargain at $100, trust me. I've had to go in and clean up after "mishaps" and it is not a fun event.

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I feel good about my Brother's resin tanks. They have a tight screen AND a slightly looser grid on both, the IN and OUT sides.
You need to empty them, you dump them by disassembling. Having the possibility of reverse-connection and messing up the whole system is a failure on the manufacturer's side IMO.