1.Capture > Filter > Reuse 1

2. Combining RainwaterHarvesting & Water Features Why rainwater harvesting Traditional harvesting methods Rainwater harvesting calculations System examples2 3. WaterTheres a whole lot of water onEarth! Something like326,000,000,000,000,000,000gallons (326 million trillion gallons)About 70 percent of the planet iscovered in ocean and the averagedepth of the ocean is severalthousand feetAbout 2 percent of the planetswater is fresh, but 1.6 percent ofthat water is locked up in the polarice caps and glaciers. 0.4% or0.004 for us 4. Water Challenges Supply & Demand Limited supply of fresh water Demand is out pacing supply Storm water Run-off 5. Supply & Demand5 6. Ancient Concepts 6 7. Green Solutions for Water Supply 8. 8 9. Green Solutions for Water Supply 9 10. How do we catch it? 11. Rainwater Collection! Sources of Rain Water? I wasnt thinking the sky! Roofs Least amount of pollutants Elevation of gutter allows directing to tank without pump Easy to pre-filter and provide first flush Low cost of conversion Pavement Dirt and pollutants are more abundant May need pumps to move water to storage area Can be expensive to convert for collecting Rain, more cost effective if done during construction 12. Dont Let It Get Away! Sources of Rain Water? Landscape Areas Detain or Retain? Contour planting Rain Gardens Soil improvements 13. How to figure the Sq. Ft. of aroof 14. Collectable Water A = (catchment area of building) R = (inches of rain) CF = 0.623 (conversion factor for 1 rainfall to gallonsof water/ sq ft.) G = (total amount of collected rainwater) A x R x CF = GSo if you have a roof that is 200 x 300=60,000 sq ft (A)You have 1 of rainfall (R)You would multiply 60,000 sq ft x 0.623= 37,380 gal ofwater off that area in a 1 rain. 15. Large Underground Tank 16. Rain Water Storage 17. Rain Water Storage 18. A Perfect Marriage 19 19. Using the Rain Water Most Rainwater Harvesting Systems are best utilizedwatering landscape plantings not turf because of thelimited size of storage units If you have a large storage area such as a lake allplanted areas can be watered with the stored rainwater Most systems will need some sort of pump todistribute the water through a pipe net work 20. Amount of water needed per 100Sq. Ft. per month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecGal/ 274995157 230 275 284 257 183 122 5227100SF 21. Rainwater Harvesting Doesnt Have to be Ugly! 22 22. Design Options 23. Typical Half Acre YardAreaHome%Land SF 22,700 100%Pavement SF900 4%Roof SF 1,2005%Landscape/turf SF 20,600 91% 24. Rain Water Harvested at Home Jan Feb Mar Apr May JunJul Aug SepOct Nov DecHome Pave. gal/month1,402 1,4022,4112,0752,4671,9062,2992,0751,7381,5701,8501,738Home Roof gal/month 1,869 1,8693,2152,7663,2892,5423,0652,7662,3182,0932,4672,318Total Harvest 3,271 3,2715,6264,8415,7574,4485,3644,8414,0563,6634,3174,056Total Available 35,372 35,372 60,841 52,351 62,255 48,106 58,011 52,351 43,862 39,617 46,692 43,862Water needed for plants 7,96114,382 27,864 46,226 67,670 80,896 83,593 75,760 53,931 35,825 15,4097,961Rain32,102 32,102 55,215 47,510 56,499 43,658 52,647 47,510 39,806 35,954 42,374 39,806Over Under24,140 17,720 27,3511,284 (11,171) (37,238) (30,946) (28,249) (14,125)128 26,965 31,845 25. How the RainXchange System Works26 26. Downspout Filter 27 27. Unattractive Downspout Filter 28. The RainXchange Downspout Filter Filters Rainwater Before Entering the Storage BasinGrated lid and layer of gravel removeslarge debris, such as leaves and twigsSmaller particulates are captured in a300 micron, easy to clean debris netMolded hose-tail stub fits 3 or 4corrugated drain pipeDesigned to sit at the base ofthe downspout. 29. Drainage Pipe DeliversRainwater to the Storage BasinThe Downspout Filter is setup for 3 or 4 corrugateddrain pipe.30 30. The Size of the Storage Basin Depends on the SitesWater Use Requirements 31 31. Rain Water Storage 32. Booster fitting kitplumbed intowaterfeature supplyHarvested Water Accessed Through the WaterfeaturelineSupply Line35 33. Overflow ManagementInfiltration or Redirection is RequiredSize of Infiltrationdepends on site soilcharacteristics andpotential overflowquantity 36 34. Project Spotlight 35. Aqualand PerviousPavement Patio 36. 9 x 11 x 6 Basin 37. 96 Aquablox = 3,000 gallons 38. 41 39. Pervious Paver System3,000 square feet 40. Booster Pump 41. $15,000 RainXchange System Installed 42. Front Porch Dwellers 43. Erosion Issues with ExistingDownspout 44. 16 AquaBlox Modules = 500 Gallons 45. 6 x 9 x 4 Basin 46. Almost Complete 47. Downspout Filter 48. http://www.slideshare.net53