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Residue from a previous leak (fig. 6). Be on the lookout for such (fresh) leaks (fig. 6.2). Fluids of ANY colour are an issue!:
(Figure 6)
(Figure 6.2)
(Figure 7)
Check Clean Mats at the entrances to the data center. When excessively dirty (as pictured above, fig. 7 ), please remove and discard the top layer, revealing a fresh layer underneath. This helps to prevent dirt from being tracked into the datacenter, and ultimately, into the equipment.
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