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I need a service manual for my vintage WP-20W waterpik

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To mp3mastr:
I don't have a service manual, but I've owned and used these WP-20W's for 30 years or so and kept them running, so I'll bet I can help you if you'd care to email me at
Tell me what's wrong or what you might need.

Posted on Oct 08, 2010

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Posted on Jan 02, 2017

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