Need Suggestions For Cleaning Exterior Of Lanai Windows

[GeoGeo]

We have acrylic windows on our lanai. We cannot take the screen off to get to the outside of the windows. The windows are too big and heavy to try to remove and replace. We were told that you are not supposed to spray them with a power washer (even the no pressure one). How can I clean the outsides and what should I use to not damage the acrylic?

[blueskys4me]

Call people who know this stuff, I would call CUSTOM WINDOWS AND DOORS in Leesburg. They install these things and would be the first place I would go. After you talk to someone there that knows what they are talking about, call one or two other company's that install lania windows and see if they all say the same thing. Using the wrong produce could damage the Windows.