|WikiProject Environment / Sustainability||(Rated C-class, Mid-importance)|
|WikiProject International development|
- 1 In Western countries?
- 2 Stockholm Water Prize
- 3 Rainwater harvesting now compulsory in cities in Himachal Pradesh
- 4 Methods
- 5 Does storage info belong in this article?
- 6 Methods and Calcs
- 7 latest additions
- 8 In England
- 9 Picture added
- 10 Merge Rainwater tank and Rainwater harvesting?
- 11 Pictures
- 12 Rainwater harvesting system with hydraulic ram
- 13 Re-insert images
- 14 Rainwaterfilters
- 15 Try again
- 16 Legal?
- 17 Last edit
- 18 Techniques in Africa
- 19 missing references
- 20 missing references
- 21 missing reality
- 22 Techniques in Africa
In Western countries?
"I'm not happy with the information in this paragraph. Yes I guess the last few sentences are true but for a technique that is primarily meant as a means to provide some of the most desperate people in the world with an adeque means of water, it's quite unebelivable that western Britain.. ? is mentioned along with consumer... water bills, resevoirs and scarce space.
I'm sorry to sound annoyed, it's just I expect if you do a quick search on the net you will find that most of the places where this form of civil engineering is being applied are developing countries where there is no other means."
Contrary to the above opinion,rainwater harvesting is now being promoted in developed countries not because of shortage but because it has been found that harvested rainwater is environmental friendly and the safest source of water for any use considering its short path to the end user. Treating it also involves a simpler process than that of water from conventional sources.
Its other advantages are (1) Its zero hardness (free of minerals) prevents scaling of appliances (2)Harvesting rainwater mitigates urban flooding and reduces load on storm water drains (3)It reduces pollution of water courses by storm water discharge.
For the above reasons, an estimated 100,000 residential rainwater harvesting systems (RWHSs)are in use in USA and its territories (see Lye D.,Journal of The American Water Resources Association, 2002 edition). the state of Texas has even gone ahead and published "The Texas Manual on Rainwater Harvesting" now in its 3rd edition.
Stockholm Water Prize
I just saw that cse - a strong RWH proponent - got the Stockholm Water Prize 2005. http://www.siwi.org/press/presrel_05_SWP_Ceremony_Eng.htm Benkeboy 16:18, 23 March 2006 (UTC)
Rainwater harvesting now compulsory in cities in Himachal Pradesh
I just came across this report.
INDIA: Himachal Pradesh makes rainwater harvesting in cities compulsory
The Himachal Government is following the example of Karnataka, New Delhi and Chennai making a rainwater-harvesting structure compulsory in all new buildings within the municipal council limits to check the wastage of water. Mr Kartar Jaiswal, Executive Officer, Local Municipal Council, issued a public notice saying that while constructing buildings 20 litres per square metre rooftop area need to be included for rainwater harvesting. If this is not the case, permission to build will be rejected.
the section on ´´methods´´ should be expanded to include the ways in which the harvesting and dsitribution is done via roofs, johads, viaducts etc Benkeboy 15:51, 23 March 2006 (UTC)
I'm very interested in low-cost storage methods. I was told about a project in Nepal, where adobe or mudbrick was used to construct tanks. About 10% of the water was lost through the walls, but this had the benefit of wetting the soil and providing a place for food plants to grow (maybe fruit trees). --Singkong2005 ‘‘a.k.a. Chriswaterguy’’15:25, 8 May 2006 (UTC)
Interesting info on harvesting methods from a radio program, Thirsty Communities - Harvesting the Rains in Rajasthan:
"the structures that harvest rain in India this way go by different names. There are talabs, beris, tankas, nadis, and many more, made out of brick, dung, earth - or today - concrete, all were designed to suit different locations and terrains."
"here in the Thar desert we’ve come up to one of the many types of water harvesting devices in this region. This is actually quite an old one, it was built about 50 or 60 years ago by the local community here. And in effect, it’s a large dug out depression in the earth. It’s probably a couple of hundred metres in diameter. The idea is that it captures the rain, and people can walk down the stairs that are just to one side and take water from this, which effectively looks like a big pond."
"as well as providing drinking water it’s allowing them to grow trees and a fruit orchard on their parched lands."
The program describes a taanka which harvests rainwater, with an artificial catchment constructed by the people. It's a "big round structure raised up above the ground, but dug deep cylindrically into the depths of the earth, and the catchment is sort of a raised earth around it." Wells for India have adapted this traditional method:
- adding silt catchers (a "little depression on the side" - I guess this means the rain has to collect in a shallow depression and run over into the storage, so that silt collects in the depression); and
- paving the surface to increase runoff.
Does storage info belong in this article?
Or should the article just link to Water tank?
I'm not sure if it should. Rainwater tanks can be quite different in construction from regular tanks, mainly because one looks for the most cost effective solution in the developing world, which may involve constructing the sides out of clay and digging the tank into the ground.
My concern is say this were used for a course at wikiversity, those needing to know about tanks used for harvesting rainwater do not need to know about water tanks in general. JHJPDJKDKHI! 20:26, 31 July 2006 (UTC)
Methods and Calcs
I'm going to try to get around to expanding the section on 'systems' because IMHO it's sorely deficient now. Additios on calcs (x inches / 1000sq = x litres) is easily researched and mandatory when considering a catchment system. Useful materials for construction would be useful as well. I realize most of this sort of info (and more) is likely obtainable by following some of the external links at the bottom of the page, but as I'm understanding this to be an intended self-sufficient article (rather than a direction to outside resources) there's still *lots* to be added to the page regarding the practicalities of building a catchment system --—Preceding unsigned comment added by Dirtyharry2 (talk • contribs) 13 September 2006
- Good, but see comment below, re putting "how-to" info at Appropedia. --Chriswaterguy talk 02:39, 8 March 2007 (UTC)
No they shoul be seperte I have my reasons...
Cheers for the additions. There are alot of references there. JHJPDJKDKHI! 01:35, 8 March 2007 (UTC)
- A lot of good stuff there. However, I'm concerned that it's looking a bit like a how-to, and some of it might get deleted due to the WP:NOT policy:
- Wikipedia articles should not include instructions or advice (legal, medical, or otherwise), suggestions, or contain "how-to"s. This includes tutorials, walk-throughs, instruction manuals, video game guides, and recipes.
- The idea is that how-tos can go elsewhere, which is fair enough, e.g. Wikibooks or Appropedia. I believe Appropedia: Rainwater harvesting is the best place (disclosure: [[Appropedia: User:Chriswaterguy|I’m an Appropedia admin).
- Anyway, deciding which bits are okay to stay here and which should get transwikied to Appropedia looks like a fairly subtle task which will take a bit of work. --Chriswaterguy talk 02:39, 8 March 2007 (UTC)
I added a line about the use of water butts for the collection of rain. This is becoming more popular with the prevelance of hose-pipe bans. Probably it's true outside of England too - but I don't have any sources... My new-build house comes with a water butt included in the deal... —Preceding unsigned comment added by 220.127.116.11 (talk) 10:57, 20 March 2008 (UTC)
I added a schematic picture (
) Please do not remove as it provides extra info with the article.
- I suggest you fix the white point so that the background is flat white. That will make the diagrams look a lot more professional. --18.104.22.168 (talk) 22:57, 9 September 2008 (UTC)
Merge Rainwater tank and Rainwater harvesting?
The pictures on top of the article arent really good. The stepwell can remain, but I suggest changing the johad to a picture of a rooftop rainwater harvesting system. The johad can be placed in the section with groundwater recharge.
Rainwater harvesting system with hydraulic ram
I recently became aware of Heron's fountain. After some research, I noticed that the Hydraulic_ram operates similarly. I was thinking about whether it would be possible to use a hydraulic ram pump, together with a main water reservoir on a roof (for height) i order to make a continuous (self-pumping, without electricity) system for supplying water.
Yes, but it will waste more water than it pumps. If the wasted water goes to good cleaning and irrigation uses, than one may get a smaller volume of pressurized water to store at a higher elevation, or immediately force through filters, spray emitters, or more convenient spigots. In this way energy not needed for a low pressure application, can theoretically be transferred to enable a higher pressure application.--Brian Ashman (talk) 03:20, 25 July 2009 (UTC)
Please re-insert my images and recommendations (grafity-fed systems, ...) I added the commercial products simply to demonstrate cost-saving features used by them. Categories are removed aswell.
Another schematic I have found of a system is the following: http://www.tmvw.be/documenten/pdf/rwgebr.pdf (it includes 2 pumps)
This should be worked out better. A example of a selfpurifying rainwater filter is avialable at http://www.devaplus.be/userfiles/files/Devafilterrekto.pdf —Preceding unsigned comment added by 22.214.171.124 (talk) 11:19, 23 January 2009 (UTC)
I reverted to a better older version. Re-examine the new info added since then and improve from old version. Leave pictures or make better ones. I put in allot of work, its better article, so start again. Thanks, 126.96.36.199 (talk) 19:26, 6 February 2009 (UTC)
- Correct. It is still basically illegal for residents of Colorado to collect rainwater. To collect rainwater, you have to have an existing well permit, and your residence may not be connected to a city water supply. The interpretation by water board lists all 6 requirements you must meet in order to legally harvest rainwater in Colorado. Statute as passed. The hurdles are set high enough to keep it illegal in Colorado for more than 90% of the people living here. Tangurena (talk) 03:11, 29 October 2009 (UTC)
- Sorry I didn't log in Friday. I found this article  from a Colorado Springs newspaper. Apparently it's less illegal than it used to be, but "don't install a barrel under your gutter spout just yet." Is this noteworthy enough to include in the article? Do other states do this? -W0lfie (talk) 17:10, 21 July 2009 (UTC)
Good to include this in Talk:Rainwater harvesting, but too local to include such depth in this article except as a topic of legal aspects. Long articles load too slow. —Preceding unsigned comment added by BrianAsh (talk • contribs) 04:05, 25 July 2009 (UTC)
Recent story: Gary Harrington, Oregon Resident, Sentenced To Jail For Stockpiling Rainwater --George100 (talk) 06:48, 17 August 2012 (UTC)
Seems, harvesting was illegal in Utah too: [http://www.naturalnews.com/029286_rainwater_collection_water.html Collecting rainwater now illegal in many states as Big Government claims ownership over our water] by Mike Adams (Editor of NaturalNews.com) July 26, 2010; Is It Illegal to Harvest Rainwater in Utah? (blog, May 30, 2009). There is also some survey here: State Rainwater Harvesting Statues, Programs and Legislation, NCSL 2012 `a5b (talk) 03:27, 24 January 2013 (UTC)
The last edit had interesting information. However it belongs in a different article. This was about water harvesting before it reaches the aquifer recharge zone. The inserted text was about helping the aquifer recharge. I think it belongs in an aquifer related article. Sidelight12 Talk 16:25, 27 December 2012 (UTC)
Techniques in Africa
HI? There seems to be little said about harvesting techniques in Africa.How can we improve on this?Onyangoachieng (talk) 07:37, 25 February 2015 (UTC)