Reading through my Hayward Power-Flo Matrix installation booklet under the Plumbing section it says
Teflon tape does not always give you the best seal as well as the plumber's dope does!!Use Teflon tape to seal threaded connections on molded plastic component. All plastic fittings must be new or thoroughly cleaned before use. NOTE: Do Not use Plumber's Pipe Dope as it may cause cracking of the plastic components
Has anyone had any experience using pipe dope instead of Teflon tape on the plastic housed pumps and any other plastic to plastic fittings?