Even if they were labeled, the labels could very well be reversed.
Anyhow, which model Springdale?
Regardless, the surest way to find out is to use a clear elbow connector when it comes time to dump the tanks.
http://www.amazon.com/Camco-39847-Rh.../dp/B006OQ35GU
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-Scott, DW, DG, DB, and DD
2011 Passport 2590BH
2009 Ford F150 SuperCrew F
X4 5.4L w/Max Tow