Art, The flushing should be done before the valve is set. It should be done at the spigot flange. Typically, a pipe of the same size as the underground is attached to the floor flange and aimed out a door. Pitoting the output should tell you if the prescribed amount of water is discharged.
Thank You Rahe Loftin, P.E. Region 7 - GSA Office - 817-978-7299 Fax - 817-978-8644 Cell - 817-371-3102 _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: supp...@firesprinkler.org To Unsubscribe, send an email to:sprinklerforum-requ...@firesprinkler.org (Put the word unsubscribe in the subject field)