"Backwashing" means the reversal of flow through a filter to wash clogging material out of the filtering medium and reduce conditions that cause head loss.
Nev. Admin. Code § 445A.6562
NRS 445A.860
"Backwashing" means the reversal of flow through a filter to wash clogging material out of the filtering medium and reduce conditions that cause head loss.
Nev. Admin. Code § 445A.6562
NRS 445A.860