Thank you all for your replies to my post.
I have looked into Iodine, and found a competing product used ‘Iodine Impregnated Beads’ for the water to pass through it. I got in touch with a water chemical company, and they told me that using iodine in 3rd world countries would be a problem as they wouldnt be able to acuratly monitor the post filter removing the excess iodine.
Epic - Dont worry you havent upset me, I need these kind of questions to be asked.
I want the user to be as broad as possible, whether they are in a shanty town, on the outskirts of Joberg, or the outback of Kenya. I want this to be used by a family/community of roughly 6-8 people. (I know in reality a lot more people will use it that this).
I dint encorporate a means of transporting the water from the source to the settlement due to after research, i found that they had containers to do this.
How is it shipped to the user?
My customers are charities such as ‘Red-Cross’, ‘Oxfam’ and ‘WaterAid’. However I think there is a large opportunity selling to governments, and the U.N.
I want the product to be produced in factories in africa, cheaper labour, and cheaper transport costs. I have made the design transport friendly as the buckets are stackable, and all the other elements clip into place in the lid. The product would be dispatched by road, using trucks.
Is it assembled on site, or what?
It would be assembled for transport in factory, then shipped, then user would assemble/erect it.
Is it a special bucket? Can they just use a bucket they already have?
A ‘special’ bucket, handles encorporated, hole in bottom for tap (tap to be fitted by nut/screw (bought in)). The lid is attached by a live hinged mechanism, like that on lunchboxes etc…
What happens when the filter is clogged? How do you clean it?(esp. in a developing country)
I had planned for the filter to be hand washed in the ‘clean’ water weekly, then replacements could be given out by the charites on a 12-18 month basis.
Can any parts be user maintained and repaired?
I have tried to make all the parts easily replaceable, for example to top filter bag, the attachment to the tubing i have used some sort of clamp, that clamps the bag into place, so if the bag was to split it could be replaced by a variety of things.
How much does it cost?
New - $60-70 (to charaties, etc…)
How is it better than what is already available?
Ceramic filters, very cheap, but do not filter all virusses, and some bacteria.
BioSand filters, again very cheap, but very slow flowrate, that slows down even more after time.
LifeSaver Bottle, roughly Â£200 (expensive), and needs a replacement filter every 6 months (6000 litres) that cost a further Â£90
LifeStraw, biggest competition, but uses the iodine impreganted beads, that I was adviced against, and doesnt have a safe way of collecting the clean water.
Have you looked at how other water filters work?
Yes, I have done a lot of research into other filters, and getting to a point now, where im getting stuck, as i have been adviced away from each of them…
Have you thought about actually making this work in real life? Like doing a trial?
I would love this to actually work, I really do have a big problem with the fact that there are so many people across the world that dont have access to water, which above anything is a human right! Goverments and organisations are helping it, and last year a total of Â£6.2 billion was given to world water aid and sanitation, but its still hoing to take at least 30-40 years apprently to get clean water to all communities across the world.