Rooftop Catchment: Difference between revisions
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*Get cheapest washed gravel - small works better | *Get cheapest washed gravel - small works better | ||
*Porosity of pea gravel is .65 | *Porosity of pea gravel is .65 | ||
*Dan puts liner (check http://www.reefindustries.com/) in the cistern, then rock, then culverts, fills it up. | |||
*Gallon/day/person - 15 gal/day bath-cooking-water-animals | *Gallon/day/person - 15 gal/day bath-cooking-water-animals | ||
*3-1 long to wide | *3-1 long to wide | ||
Revision as of 05:02, 24 February 2012
Credits: Dan the Irreverend
Download: File:Roofcatch.pdf
- Get cheapest washed gravel - small works better
- Porosity of pea gravel is .65
- Dan puts liner (check http://www.reefindustries.com/) in the cistern, then rock, then culverts, fills it up.
- Gallon/day/person - 15 gal/day bath-cooking-water-animals
- 3-1 long to wide
- 2x depth away from house
- dig a ditch next to gravel tank - put side and top liner there - roll a piece of PVC, screw down to keep anything from getting in there.
- Culvert with pie cuts
- Culvert looks like a riser. Riser comes out of ground 6" - so no flood water.
- Go down to 1 micron - 500 gallon tank
- Reef Industries - 19 mil - should be about 30 cents per square foot.
- ressure-compensated septic drip tubing at Home Depot