EWB 1/10/11

What we discussed with the Indy Professionals:

- only 10,000 of 14,000 liters of water from the source are reaching the town.
- only the school has showers and toilets. Everyone else takes baths and charcoal toilets.
- the pipe can be seen in google map images!
- 17,000 liters from Tree Spring
- 2" pipe size VERY restrictive. Need 6" or 8" pipe.
	- Replace pipe back until something with backflow.
	- have 2" pipe dump into a storage tank, then larger pipe exit from the storage tank as a means to expand the pipe.
	- water pumps - hand pumps (bikes, mules, playground equipment) to boost water pressure at the faucet. - closed water pumps! 
	- lay large pipe next to small pipe.
	- lay storage tanks along the way with the small pipe going into it, and the large pipe coming out of it. - closed storage tanks!
- PVC pipe is the best piping we could use for the conditions. (YAY!)
- Need to seat the pipes right to prevent the joints from separating from the expansion and contraction (due to weather and temperature changes) causing water leaks.
- cover the open ducts to prevent evaporation loss. 
- build the Tree Spring pipe with the larger pipe.
- want 20 psi of pressure at the facet (can have less than that).
- 0.43 psi per 1ft of vertical height.
!! - connect the systems via a 1 way valve. Pipe and store the tree spring to a higher elevation reservoir, then connect it to the existing system. 
	- want the new reservoir to be atlas 40 ft above the highest resident it will be servicing --> so they have 20 lbs of pressure.
!! - goal for this summer: connect the spring. 
- for the rest of population without water, connect hand pumps so they can use buckets to collect water. This is accessed from a closed storage tank. 
- get pricing for PVC, cement, labor, starting work ahead of time --> supervisor, in Bolivia.
- GOALS: 
	1) Collect Tree Spring water --> collection box
	2) Pipe Tree Spring to higher elevation reservoir. 
		- 1st reservoir where pipe start to collect water from tree spring, 2nd reservoir is going to be larger than the first one. the second one is located at a higher elevation. The Tree Spring will be connected to the existing system after this second reservoir via a one way valve. 
	3) 6"-8" pipe parallel to existing system (dry line) after joining Tree Spring. 
	4) Final Connection. 
- can phase 6" to 4" to 2" to cut down on money and possibly still get the desired effects. 
- Tree spring could service the lower part of the system.
- Calculate highest house and lowest house to find the limits of the system. 

!!! IF WE WANT TO MEET OUR DEADLINE !!!
If we want to travel to Bolivia end of July/August, then our design review is due beginning of April!!!