WARBLER713 From what I understand oozing can be caused from mite infestation. as well as other issues> I'm not sure if that's the cause of your problem but here's a site that tells about water descretion or oozing I really don't know if that helps you , but It may give you a lead on what to look for...
Http://apsnet.org/pd/searchnotes/2004/1104-01N.asp
If this answers your question then
if not then I'll keep looking because I've wanted a paricha for a while and with two of you experiencing the same thing, then I need to look into it as well before purchasing one.