I noticed sediment seeping along the seal of my clean out drain cap. My first question is this a clean out drain? My next questions are what can cause these problems and what type of professional should I contact? Thank you.
That look more like sealant or plumbers putty that was used to seal the threads. If it is not wet, don't worry about it. If it is wet, you need to use some plumbers putty and seal it again.
Handy Andy In Mt Airy NC
Andrew check out Molding & Carpentry