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SOLUTIONS - Upper Hutt College (Page 2)
| Expert feedback from Doug McConaughy of McCONAUGHY CONSULTING and Professor Pauline Norris of the University of Otago | |
1. Matt and Jason's Jumping Super Pump!
When you jump on the yellow device the water gets forced through the one way value represented in red and then travels down to the yellow foot pump in which is goes through another one-way valve and then forced up through tap. Then the water exits down the green pipe into a green holding area in which can be used to clean and use for other uses. The device will be mainly supported by wood and will have metal parts to store the water or have plastic depending on how much money and parts are available. The pipes will be made out of strong plastic and so will the holding tank and foot pump. The sink and inner tank will need to with stand rust so it should be made with plastic and have a grill or a sieve to stop leaves and other debris from falling in. The device will be the size of whatever parts are available. Mat and Jasons's poster and Wash Your Hands word play. |
You have obviously thought about the durability of the tank and pipes. However pumps often require maintenance and spare parts.This looks like it would be fun to use and the foot operation is good for avoiding cross contamination.The right foot pump would be good for controlling the amount of water dispersed. More catchment for the tank would probably be required.Communication -Feedback by Professor Pauline Norris:A clear and simple poster.It will work as long as the people know what germs are. Good you show brown hands.The wordplay is a cool idea. |
2. Ryan and Campbell
Our hand washing device will work by the tarpaulin be used as a funnel to catch the rain water. Making the tarpaulin spread over a large area will help catching more of the water. When the water is flowing down the pipe wire mesh will be placed in the pipe to catch any foreign objects that come through the pipe. A removable pipe will be installed so that it gives easy access to the mesh if it needs replacing/cleaning. The collected water will be fed out of a tap which will be operated by a foot pump which will released when a slit is pulled down when the foot pump is stepped on and when the foot pump is released the slit will shoot back into place because of the elastic band. A hand sanitizer/soap will be placed next to the device and instruction on how to wash your hands will also be provided next to the device.
Instructions on how to use our device:
Click for Ryan and Campbell's Down the Drain cards and rules, game, poster 1 and poster 2. |
I like the simplicity of this and the pedal operated tap.A tarpaulin is a good idea for collecting water if there is not sufficient roof area on the school buildings - however they tend not to be very durableI think your system would work quite well it would probably need more water storage than 70 litres however.Communication: Professor Pauline Norris. Wow. What a lot of effort you have put into the game and what a great idea it is. The name is good too. The poster is clear and simple but it looks like all the images came off the Internet and I am not sure about the scary germ at the bottom of the second poster. It is better to educate than scare people. |
3. Anthony
The 50 litre tank is made out of sturdy plastic and requires a stand. To operate, the user steps on the pump which forces air into the tank. The air can’t go anywhere so the pressure slowly pushes the water down, through the curved tube and out into a bowl or drain. The curved tube design means that water will only be dispensed if air is pumped into the tank. Children can lather their hands with soap (optional) before rinsing their hands at an efficiently. A limit can be set on the number of pumps per hand wash to save water. Anthony's poster is here. |
This would work quite well for dispensing water and avoiding cross contamination, it would need to be filled up quite regularly.The foot pump and the air seals are area’s where this device would need a fairly high degree of maintenance.I think this would be a very user friendly device, the foot pump would allow good control of the water flow.Communication: Professor Pauline Norris.An easily read poster but ar they original images? I don't like the phrase easily preventable - dies it mean that people are hopeless? Maybe a message like - you could prevent illness by washing your hands might be better? |
4. Riaan
Big BucketHow it works: Water can fall in as rain, or can be picked up in this bucket. The filter on the top takes out most of the big stuff in the water like leaves or rocks. Then you can boil the water, killing all of the germs in the water. Then you just hang it from a tree, and use a foot pedal to move the slide under the bucket, letting water come out a will. All you need is a bucket, filter foot pedal, and slide. Not to mention some water that needs cleaning. Click here for Riaan's Scrub a Day verse. |
Thinking of water treatment is good however boiling water even in a place with lots of wood is a difficult and time consuming process.Your device would be very durable as it has few and very simple parts.It would be easy to use however it would need constant refilling, which would not encourage people to use it.Communication:Professor Pauline Norris - A cool (song?) which is well presented. Does everyone know what germs are though? |
5. David P My prototype is a simple and cheap solution for saving water. The design is relatively simple and consists of only 3-4 vital, major parts. Some of it can be made out of things from Papua New Guinea for example, if the table was omitted, the wooden frame could easily be made from large sticks. The water that is caught in the bowl could be used to feed plants. Its easy operation makes it a fun and easy way to save water. When a few kids use it, the water will flow less and less, as the water level lowers. This could easily be fixed by inverting the tank. |
Like you said this would be effective for a while until it needed to be turned over.I like how you have thought about making it out of simple components that would last well and are easily sourced.I think that having to turn the water container over at the right time is going to make this set up difficult to use. |
6. Mitchell and Ben
Click for Ben and Mitchell's PNG wordfind - Letter to village leader - Poster. |
Solar heat to sterilise water could work, how you have done it may need some modifications to reach and maintain the necessary temperature to kill bacteria.Your design looks like it could be quite durable and bamboo can be replaced easily if it is growing locally.It looks like it would be easy to use.Communication: Professor Pauline Norris. Gosh the wordfind is amazing. It must be hard to do it in another language. I can see the letter to the village leader is well intentioned but I am not sure how effective it is to send a letter to someone you don't know. Maybe it would be better to get someone there to go and talk to the village leader.The poster is great but I am not sure about the scary bit at the bottom. |
7. Jake My design works by the “holder” catches the rain water and then goes Click here for Jake's word search. |
Your design sounds good but I can’t see enough to figure out how it works.It looks like a good simple system; simple systems are often quite durable.It looks like it would be easy to use.Communication: Professor Pauline Norris. Your wordsearch is good but there are some difficult words there that some people may not understand. |
8. Jack, Marcus and Jayden's Water Evaporation Device
Click for the complete instructions for Jack, Marcus and Jayden's Water Evaporation Device. |
I think this system could work quite well for purifying water with a few modifications. If the black cloth was replaced with plastic and the impure water was placed in the hole around the bucket, the sun could evaporate the water. It would then condense on the cooler plastic surface and run down into the bucket leaving impurities behind. This would also make fresh water out of seawater as it leaves the salt in the bottom of the hole. |
9. Jeli and Hope
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Having more than one tap is a good idea. The pulldown taps could cause some cross contamination.This looks like it would be quite a durable device.Having more than one tap is definitely a user friendly feature.Communication: Professor Pauline Norris. The poem is cool and I really like it. Children would love it too. Some of those words would really appeal to them!The poster title is good with a great name but it could be a little scary for kids. |
10. Micaela and Harmony
Instructions:
CLEAN HANDS! Micaela and Harmony's Germy Germs vs. Happy Hands game and card sets 1, 2 and 3. |
This device looks quite effective. You have put soap in easy reach which is a good thing.I can’t see what material you have used, but the setup is quite simple which always helps with durability.Your device looks like it would be very user friendly.Communication: Professor Pauline Norris. I am sure the game is really good but I find it complicated to follow. Have you practiced it with some friends to see if it would work? |
11. Micheal
My Water Device instructions The rain comes down from the top and gets collected in the top bowl and then there is a little door at the bottom of the top bowl that can be worked with a foot pedal to let the water down onto a metal bowl. There is a fire under the bowl to boil the water so it is safe and clear of infection. When you are done using the water there is another little door that you can use to let the water out using a foot pedal. Then you just use the next lot of rain water that comes in. The water is boiled so there is no infection or disease in the water. It is stored up high so you can just use what you need to use. So it is efficient with how much water you use. It I made of bamboo, metal and leaves. Click for Micheal's game and cards 1 and 2. |
There are some good ideas here but I wonder what would happen in a drought? You have the right idea about cross contamination so foot pedals and the idea of boiling water is good. However an open fire might be dangerous in a school and there would be the extra problem of collecting firewood.Communication: Professor Pauline Norris. What a cool idea to design a game around a water drop. I think this has a lot of potential for actual use in the highlands but some of the messages are a bit 'doom and gloom'. |
The rain/water falls down the “v” shaped funnel in which goes into a holding tank the tank has a cone shape at the bottom which has a 1-way valve in which water can go down but can’t come out. 
The only things that would need to be imported are the water storage
