Hydraulic ram pumps and Sling Pumps

Rainwater Harvestingcan make use a finance system like a bank, a savings deposit of afarmers or womens group. Of course an outside finance programme issuitable but personal inputs enhance the 'bond' with the constructionand thus strengthens the sustainability.Last but not least: someone is to teach the members of the target grouphow to construct a rainwater harvesting installation. This person orthese people shall have to be very enthousiastic rather than skillfull andable to reflect this upon the target group.Required materials● Rain. And really lots of it, throughout the year, favouribly sometwo metres of it!● A catchment area, usually a roof of 20 square metres or above issufficient.● Roof-gutters, those can consist of bent metal sheets or even largesplit bamboo 'tubes' (the gutters should have a large enoughcapacity to prevent overflow during rainfall).● Pipelines or gutters (bamboo, PVC, etc.) that lead from the roofguttersto the storage tank.● A storage tank; because of the size (between 5.000 and 12.000litres) a concrete, a ferrocement or a bamboo-cement structure isrecommendable for relyability and sturdyness. Do mind that aman-hole should be present for inside-cleaning purposes. The tankcan be built both super- or sub-surface but consider that the outletis situated at the bottom and must remain accessible.● A vessel or a piece of garden-hose can be used to transport waterfrom the storage tank to the slow sand filter.●For the slow sand filter you need:❍ a clean empty oil drum with a lid (or equivalent) some 500litres large,http://www.lifewater.ca/rain.htm (4 of 5) [1/13/2005 12:49:03 PM]