Korobosea International School

Expert feedback from Dr Hugh Thorpe - civil engineer

1. TEAM PREVENTION Click here for Team Prevention's poster, handwashing device, hand sanitising recipe and project highlights.   ************************* 2. THE WATER CREW Group members: Jezreel, Archibald, and Camello      Education materials: (game board) Click here for more details of the Water Crew's gadget, highlights and sanitiser. *************************************   3. THE WATER DRAGONS Click here for the Water Dragon's sanitiser, prototype and instructions, highlights and poster. *************************************** 4. HANDS OF TOMORROW Click here for the Hands of Tomorrow Group's brief, poster, sanitiser recipe, device and instructions and the highlights. *************************************** 5. THE WATER PRODUCERS Click here for the Water Producer's brief, poster, sanitiser recipe, device, instructions and the highlights. ************************************** 6. TEAM WATERWORKS Click here for Team Waterworks's brief, poster, sanitiser recipe, device, instructions and the highlights. ************************************* 7. CLEAN HANDS ASSOCIATION Click here for the Clean Hands Association's brief, poster, sanitiser recipe, device, instructions and the highlights. ************************************* 8. TEAM WATER Click here for Team Water's brief, poster, sanitiser recipe, device, instructions and the highlights.

1. Effectiveness: An excellent name and yes, prevention is better than cure! The gadget would work but the top container should be large because this means more washes for each filling. Having the container up high is good because the water will flow better. If you can get a simple plastic tap it would be better than a plug because you can make the water flow faster or slower and waste less. A plug, for example, might easily be knocked out and water wasted. A way to use less water would be to fix a sprinkler head from say a garden watering can to your pipe. Small drops of water wet the hands more evenly and slowly so again you waste less. Durability: Your gadget looks very durable. You certainly used plenty of silicone! User friendliness: The gadget would be easy to use. Communication: The poster is well laid out, the drawings are large and clear and the words are good. eneral: The towel is an important part of the washing process as the drying can remove any last germs which did not wash off. The box container is neat! Will you use a container to catch water and re-use for e.g. watering a garden? ********************************* 2. Effectiveness: The gadget would work but would be much improved by using the biggest bottle at the top because this stores more water and you don't have to fill it so often. You would need a funnel otherwise you will spill a lot of water while filling. The tap is good to control flow but could be further improved by fixing a sprinkler head from e.g. a watering can to the outlet. This would spread the water slowly and evenly over the hands and use less water. Durability: The gadget would be durable. User friendliness: The gadget would be easy to use but it would be a nuisance to fill without a funnel. Communication: The board game looks interesting but the words are so small I cannot read them in the photo to see exactly how it works. General: Would you have a bucket on the floor so that after hand washing the water might be used for something else such as watering a garden? I can see why you chose shampoo because it could easily be dispensed by your gadget. Shampoo is a good sanitiser but would it be more expensive than solid soap? If you lived in a village far from a town could you buy shampoo? It is great that you have included a towel. Apart from the shampoo and a tap, the gadget should be quite cheap which makes it easy for poor people to buy or make. ********************************** 3. Effectiveness: I can see you have been working really hard on this and have some really good ideas. The reservoir is good and large. Is the soapy water in a squeeze bottle? The word description is good but it is hard to tell from the photos if it will work. A simple plastic tap on the end of the pipe would help control flow and avoid wasting water. Also a sprinkler head from say a garden watering can would spread water evenly over the hands and reduce wastage. User- friendliness: because it is simple it should be user friendly but the hook on the collar could be a nuisance. What happens after you have finished? Where does the hook go? The materials look durable. Usually the joints are the most problem as they may leak after a while. General: The poster is good and bright and it is a good idea to include the board game. Did you consider re-cycling the water for e.g. watering a garden? Your descriptions are good. ************************************ 4. Effectiveness: What an excellent team name. The poster is also excellent. The bigger the bottle the better because you don't have to fill it so often. The soapy water is a good idea and would mean using less soap. What is the purpose of the slide? Is there a tap on the outlet from the big bottle? This would be an improvement to control the flow of water and reduce spillage. A sprinkler head from say a garden watering can attached to the outlet would spread water evenly over hands and reduce water use. Is this the purpose of the slide? Durability: It looks as though it should last well. Communication: I am a bit confused! I thought the method was: 1. Spray soap solution on hands from sanitiser and rub all over. 2. Put hands under slide and rinse soap off with clean water, controlled by a tap. 3. Dry hands carefully. (with towel?) But this is not what you say in your 'How it works" section! Materials: The materials are suitable and should be cheap. ************************************ 5. Effectiveness: Dispensing soap from a flexible bottle with a nozzle is a very good simple idea. Why do you need both detergent and shampoo? The bucket as a water reservoir is also good as it is large and easy to fill. The bigger the better. But why do you need two containers? One should be enough. In fact just having a large bucket with a pipe outlet and a simple plastic tap connected should do. A tap is good for controlling water flow and preventing wastage. Durability: The more bits of pipe and joints the more it is likely to leak - but the containers all look strong. User friendliness: It looks user-friendly but one part of friendliness is not having to fill the bucket too often. Use the largest bucket you can get. What about hand drying? This is an important part of the process. General: The poster is bold with a simple picture but the words do not say WHY you should keep your hands bacteria free. You have chose a good name for your group. Would you plan to collect precious water after hand washing to use again for e.g. watering a garden? ********************************************* 6. Effectiveness: Aloe vera is a good idea as it is a free and local product. Looking at the project from a 'washing our hands is interesting and fun to do' is an excellent way to start. What is a "water scooper" and how do you get it into a pipe? What is the white thing floating in the the bucket and what is the green bowl fixed above the bucket? A small label on each part of the gadget would make it easier to understand how it works. Obviously your gadget works because Miss Aisa is using it but I can't work out how from your description. Communication: The poster message is good though some of the letters could be larger and bolder. You have got the message across that more handwashing with soap means lower rates of infectious disease. Durability: The materials look strong and durable. General: Did you consider re-cycling the water for another purpose such as watering gardens? It looks like your sanitiser recipe is going to be used in a school in Kenya! *********************************** 7. Effectiveness: Ready made sanitiser is good but might be expensive compared to ordinary soap. Could you get this if you lived far out in the countryside? The gadget is simple but why do you need two containers? One should be enough, with an outlet pipe and a simple plastic tap. What do you mean by "blocker"? Is this a tap? A tap is good because you can control the flow carefully and avoid wasting water. Durability: The materials look strong and durable. Generally the most problems come from joints which may leak after a while. User friendliness: This is quite user-friendly except that I don't know how the "blocker" works and whether it might leak. A towel is necessary for hand drying as this will remove any last bugs that survive the washing. General: The photos are not all clear to show how the gadget works. Did you consider recycling the precious water for another use such as garden watering? The poster looks interesting but some of the words are small and hard to read. Keep it simple with just a few important words written large. ************************************ 8. Effectiveness: The hand wash would be good but could all people afford it compared to solid soap? Could you get it if you lived a long way from from a town? I really like the recipe however and would like to try it myself.The bucket is big which means many more washes from one filling-good. It is also easy to fill. Why do you need two containers? You could glue a pipe directly to the bucket and provided there was a simple plastic tap on the outlet pipe, the flow could be carefully controlled to prevent spilling water. Durability: The materials all look very durable. Generally joints are the main problem as they may leak. The towel is good as hand drying removes the last bugs which may have escaped the washing. Did you consider collecting the water to re-cycle it for e.g. water the school gardens? The highlights section of each of the PDFs is an excellent way to show how each group went about their project work.

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