"Danny D." wrote in news:k7bc20$nua$1
@speranza.aioe.org:

On Tue, 06 Nov 2012 06:59:55 -0800, wrote:

There are some curious fittings on many of these backflow preventers.
[snip]

I wonder if there is Linux freeware for these CAD drawings?
Wilkins Zurn 975XL CAD drawings (DXL)
http://content.zurn.com/web_documents/dxf/975XL.dxf

Standard drawing exchange format. On Linux, insert into LibreOffice Draw,
Draftsight, maybe QCAD, GIMP.