---------------------- multipart/alternative attachment Hi Harry, I Haven't had any problems with liability with any part of the systems and I've installed a whole bunch of them. The tubing does get dirty. I carry an inexpensive gun cleaning kit with me in my car and you can quickly clean these tubes. I use the humidifier treatment solution on the cleaning tool. Works great. Bob Russell RPT ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/fd/4d/dd/62/attachment.htm ---------------------- multipart/alternative attachment--
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