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Matt Parnell

→‎Start Normal Operation

Matt Parnell

→‎Procedure

Matt Parnell

→‎Set Valves to Backwash

Matt Parnell

→‎Set Valves to Backwash

Matt Parnell

→‎Procedure

Matt Parnell

→‎Process

Matt Parnell

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Matt Parnell

→‎When to Backwash

Matt Parnell

Created page with "Backwashing is the process of reversing water flow in a filter, flushing trapped particles and material (debris) to waste (sanitary sewer). == When to Backwash == Per PHTA g..."