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| #All pipework, pumps, filters and the cistern are protected from freezing during the winter | | #All pipework, pumps, filters and the cistern are protected from freezing during the winter |
| The first option may be suitable for systems optimized for exterior irrigation only. But regulatory authorities may not permit the use of such seasonal systems as part of a storm water control strategy. Year round systems can be protected from freezing by locating the pipes, pumps and cistern indoors and/or below the frost penetration depth[http://www.raqsb.mto.gov.on.ca/techpubs/ops.nsf/0/ee1f1756eacc00e18525808200628fbf/$FILE/OPSD3090.101%20Rev%231%20Nov2010.pdf]. | | The first option may be suitable for systems optimized for exterior irrigation only. But regulatory authorities may not permit the use of such seasonal systems as part of a storm water control strategy. Year round systems can be protected from freezing by locating the pipes, pumps and cistern indoors and/or below the frost penetration depth[http://www.raqsb.mto.gov.on.ca/techpubs/ops.nsf/0/ee1f1756eacc00e18525808200628fbf/$FILE/OPSD3090.101%20Rev%231%20Nov2010.pdf]. |
| <h3>Design for Maintenance </h3>
| | ===Design for Maintenance=== |
| Detailed inspection and maintenance advice can be found in [http://www.sustainabletechnologies.ca/wp/wp-content/uploads/2016/08/LID-IM-Guide-7.7-Rainwater-Cisterns.pdf Sustainable Technologies' LID I&M guide]. | | Detailed inspection and maintenance advice can be found in [http://www.sustainabletechnologies.ca/wp/wp-content/uploads/2016/08/LID-IM-Guide-7.7-Rainwater-Cisterns.pdf Sustainable Technologies' LID I&M guide]. |
| The two primary operational concerns for RWH systems are: | | The two primary operational concerns for RWH systems are: |
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| *Can the leaf screens accessed from the roof? Or from a maintenance room? | | *Can the leaf screens accessed from the roof? Or from a maintenance room? |
| *Will the cistern require entry for inspection in the future? How will this be accessed? | | *Will the cistern require entry for inspection in the future? How will this be accessed? |
| <em>RWH systems producing higher quality water will have additional maintenance requirements. These will depend on the the treatment technologies being used.</em>
| | ''RWH systems producing higher quality water will have additional maintenance requirements. These will depend on the the treatment technologies being used.'' |
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| ==Design== | | ==Design== |