Typical winter decommission and maintenance tasks

Typical winter decommission and maintenance tasks
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Component	Typical decommissioning and winter maintenance tasks needed prior to spring startup 1
Source Area/Collection Surface	Clean residual de-icing material (sand, salt) from pavement prior to spring startup
Collection System	Drain and disconnect conveyances to prevent freeze/thaw damage
Storage System	*Drain all water from above-ground outdoor storage tanks Disconnect downspouts and/or pipe upstream of the tank to prevent rainwater/snowmelt from entering the tank during winter months Disconnect electrical supply that controls equipment Shut off makeup water supply to prevent water from entering the tank
Treatment System	*Drain and disconnect any pre-storage treatment devices that should be decommissioned during the winter Decommission treatment system components per manufacturer’s guidelines
Distribution System	*Switch end use supply from harvested water to public water supply (if necessary) Drain all water from pumps and conveyance to prevent freeze/thaw damage Disconnect electrical supply to the pump and control equipment Complete all recommended winter maintenance for pumps and controls
Overflow/Bypass Systems	*Drain and disconnect to prevent freeze/thaw damage