InterNACHI®️ Forum
Thingy
Specific Inspection Topics
Plumbing Inspections
mgratton
(Marcel Gratton, CMI)
September 27, 2013, 12:35am
21
It appears to be a TSP (Trap Seal Primer).
kmiddleton
(Kirk Middleton, C.E.T.)
September 27, 2013, 12:54am
22
Marcel, that was my first guess ty
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