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- Irrigation
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- Benefits of Pond and Lake Aeration (video)
- Previous Next List Information Item Actions NAME Kasco Fountains VX Series Overview (video)
- Pump Maintenance
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- KASCO Marine
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- NEW Water Pump from Shinmaywa
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- Benefits of having a Pond
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- Waterfall Flow Chart
- It Seemed Like a Good Idea at the Time
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- What is KH, and Total Alkalinity (video)
- How To Test Your Pond Water Chemistry
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- Rainwater Harvesting
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- What is Rainwater Harvesting
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- Winterize Your Rainwater Harvesting System
- Uniseal - Innovative Pipe Penetration Seals
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- CANARM and the City of Victoria Rainwater Harvesting Initiatives
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- Product Info
- Leaf Eater Advanced
- Clean Rain Ultra (video)
- Wisy Vortex Rainwater Harvesting Filter (video)
- Premier Plastics Vertical Water Tanks, Septic Tanks and Pump Out Chambers
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- Salt Dosage Chart for Swimming Pools
- Spring & Summer Pool Opening Tips
- Closing Your Swimming Pool for the Winter (Winterizing)
- How To Estimate the Total Volume of a Pool or Pond
- PVC Installation Tips: How to Glue PVC Pipe
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- Product Info
- The NEW but Original - Jacuzzi!
- Dolphin Supreme M400
- The NEW but Original - Jacuzzi!
- Aqua Finesse - Simple Pool Water Care
- Hayward H-Series Natural Gas Heater with Electronic Ignition
- Heatsavr - The Liquid Pool Cover (video)
- Our Best Pond or Pool Net - Pond Shark Pro
- Water Features
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- Water Treatment
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- How Does Ultraviolet Water Treatment Work?
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- Tap Water Filtration
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- Should I disinfect or chlorinate my well?
- Hard Water vs Soft Water
- Why does my hot water smell like rotten eggs?
- What are Tannins in my Groundwater
- Water Conditioning Basics - Water Analysis
- Top 5 Contaminants That You Can Remove From Drinking Water
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- Wells & Groundwater
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- Groundwater Protection Act - British Columbia
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- Why A Submersible Motor Costs What It Does
- Total Cost of Ownership (TCO) - Water Pump
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- Water Systems Glossary
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- Managing Your Well During a Drought or Dry Spell
- Servicing a Water Pressure Tank
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- #1 Cause of Pump Failure
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- PVC Installation Tips: How to Glue PVC Pipe
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- Product Info
- Franklin Electric Inline 400 Pressure Boosting System by Franklin Electric
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- New Franklin Electric Connect App
- Franklin Electric AIM Manual
Tuesday, March 15, 2016
Sizing a Catchment Area:
The size of the catchment area or roof will determine how much rainwater you can harvest. The area is based on the "footprint" of the roof, which can be calculated by finding the area of the building and adding the area of the roofs overhang.
The collection efficiency of a roof is based on factors such as evaporation loss from prevailing winds, tree cover, type of roofing, etc. A well designed rainwater harvesting system can capture 75-85% of total rainfall.
Catchment Area (sq.ft) X Rainfall Depth (in.) X 0.623 (Conversion Factor) = Harvested Water (Gal)
See how much it has rained in Victoria BC here: Victoria Weather
See how much it has rained in Courtenay BC here: Courtenay Weather