Join Date: May 2002
Location: East Coast
Thanked 3 Times in 3 Posts
Rep Power: 16
You could also have an old and permeated 1.5" discharge line. Often this is the primary cause for head odors and you can tell by wiping it down with a warm wet rag and smelling the rag. If the rag smells of sewage then the hose should be replaced with a high quality sanitation hose.
No longer posting. Reach me by PM!