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Inspection and Maintenance: Rainwater Harvesting (view source)
Revision as of 20:30, 15 August 2022
, 2 years agono edit summary
|[[File:Outlets Fail RWH.PNG|300px|thumb|center|The overflow outlet pipe on this rain barrel is undersized and obstructed which impairs its function to safely convey excess water from the BMP. (Source: Melinda Webb)]]
|[[File:Outlets Fail RWH.PNG|300px|thumb|center|The overflow outlet pipe on this rain barrel is undersized and obstructed which impairs its function to safely convey excess water from the BMP. (Source: Melinda Webb)]]
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==Tips to Preserve Basic BMP Function==
*Routinely check the water delivered to hose bibs or fixtures for turbidity or discolouration which could indicate excessive sediment accumulation in the [[Rainwater harvesting: Sizing and modeling#Cistern dimensions|cistern]] or failure of [[pretreatment]] devices or filters.
*Include a [[pretreatment|filtration device]] to treat stored water prior to delivery to hose bibs or fixtures as part of the intake/distribution system and clean filters at the same frequency as pretreatment devices.
*If the [[overflow|overflow outlet]] discharges at grade, the pipe opening should be covered with a coarse screen to prevent entry by insects and animals.
*Provide a means of draining the [[Rainwater harvesting: Sizing and modeling#Cistern dimensions|cistern]] by gravity to make [[inspection and maintenance]] work that requires drainage of the BMP easier to perform.
*Remove accumulated sediment from a large [[Rainwater harvesting: Sizing and modeling#Cistern dimensions|cistern]] using a pressure washer or hydro-vac truck equipped with a JetVac nozzle to scour and direct sediment to a collection point for removal by vacuuming; for small cisterns, a garden hose and wet shop vacuum may be used.