You could be glad you put in copper. For some reason rodents are
attracted to the plastic and like to knaw on it. I have had a mouse
and a chpmunk chew up mine on two separate occasions.
You may never know the trouble you have saved yourself. Where I live
platic is tllegal for commercial installations but OK for home. Those
damed saddle valves should be illegal too. Every 5 or 6 years I have
had to replace the one formy humidifier. When I replaced my water
heater I got rid of the saddle valve.
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