CM I talked to just stressed me out about POLY stay in March with refurbs!

[CanadianGuy]

This is a link to a continuously updated list of WDW refurbishments both big and small.. this most recent edition does in fact list the Poly Pool Volcano as getting an 'acid wash' on those dates.

http://media.disneywebcontent.com/S.../pdf/D-MailPDF/IntlDmailwdwRefurbishments.pdf

Please note that this lists every little thing pretty much including less intrusive work like "handrail painting" and the like.