I'll add a bit more later..... Stay tuned but in the meantime there are more pictures here. Also some of the same but more here.
Wednesday, May 12, 2010
I'll add a bit more later..... Stay tuned but in the meantime there are more pictures here. Also some of the same but more here.
Monday, March 22, 2010
I just finished talking to the third grade classes about Dr. David Manz's invention, the BioSand Filter. Toward the end of the time I drank a full glass of the water as it came out of the filter.
The filter has been in place by the fish pond for two weeks giving the 'bio layer' time to develop.
I had three glasses setting on the table up front along with a plastic bottle that looked like a purchased half liter of drinking water. The plastic bottle had been rescued from the trash and filled from the fish pond and actually looked pretty clear.
After I introduced myself (most of them knew me anyway) I exclaimed "Watch this", and I took the first glass and filled it by dipping it into the fish pond. I then asked which they would drink, from the glass they saw me fill from the pond or from the plastic drinking water bottle (which also had the same water though they didn't know). Of course they chose the plastic bottle. "Why" I asked. "Because it is cleaner" they unanimously responded. Later, just before I drank the filtered water I told them the plastic bottle was filled from the fish pond same as the first glass.
To make a more significant visual point about the filters ability, and I felt it was helpful since the fish pond water was pretty clear, before dumping the bucket of fishy water into the filter I added a handfull of dirt. So the water actually dumped into the top of the filter was muddy looking. A second glass was filled from that water so they could see that the filter would remove such sediment. The water coming out of the filter was crystal clear and had no discernable taste. I filled the third glass with filtered water and drank.
Ask me in 8 hours or so, if in fact it was actually pathogen free, at least enough for my immune system.
An interesting time with a bunch of interested third graders.
And now they know that:
1) over one billion people in the world do not have access to clean drinking water
2) over 4000 people die every day because of disease caused by water born illness
3) there is an invention that is simple, elegant, accessible and affordable that can provide virtually pathogen free drinking water
4) Bill Davis drank water from the Brent fish pond
Wednesday, March 17, 2010
I am also preparing to speak to the four Brent School Manila third grade classes about the BioSand Filter Invention. For this I have installed a real live operational BSF in the school atrium adjacent to the fish pond. I have been preparing the BSF for this event in which I will drink water from the fish pond which I will pour through the filter. Since I survived the strep/staph infection in my leg I'm going to try something else. No I don't have a death wish. Rather I trust the BSF invention and will demonstrate it's effectiveness in this way.
The Deputy Headmaster has offered to have an ambulance on sight and ready to go. Instead or along with that I requested the presence of President Gloria, TV live coverage, and our neighbor - world boxing champ Manny Pacquaio to participate (just kidding on requesting all of that - but it was a thought).
Friday, February 19, 2010
I'll be here for another week and I do believe it will continue to be busy. Tomorrow (Sat) we will add a line to the pump output to share some of Baliuns 3500 gallons per day with his daughters in-laws across the river. He was excited about that. We will pick up three 100 meter rolls of PVC and some fittings and valves to accomplish that.
Then Sunday morning early Craig and I will set off for the south west side of Palawan and look at the suitability of another Ram Pump installation. Now that we've done one we think we can do anything. I certainly have learned a lot. Before Christmas I don't think I could even spell Ram Pump. Now look!
Water - whether its for drinking or watering the farm to feed the family and earn a living it is life giving.
I'll try to add some pictures in the near future.
Thanks for reading this and thinking of me in this endeavor. It is appreciated.
Thursday, February 11, 2010
Guess I better get this post published now that it's up again. Maybe can add some more later.
Thursday, January 14, 2010
And there's a rumor I did have an electronic device running during the flight that provided accurate positional information along with speed and direction information (which I find entertaining). It also alerted me to various islands that we passed over as we traversed the South China Sea.
Once again we are spending the night in the Duchess Pension, ate dinner at Bruno's and picked up some foodstuffs for the ten day experience. Tomorrow we'll make a few stops one of which is to pick up 5 BioSand filters before heading for Brooke's Point about a 4 1/2 hour ride south.
Wednesday, January 13, 2010
The most eminent noteworthy event is that I (Bill) leave for Palawan an a few hours. I leave with Craig Sutherland to help again with the Palawan Drinking Water Project. I traveled there the first time the end of Sept 2009 to help install some BioSand Filters (BSF) and that led to me traveling to Calgary for a Nov 2009 CAWST workshop (very productive) to learn more and also have the privelege to have dinner with the inventor of the filter. Dr. Manz's website provides oodles of first rate information upon which I refer to often
There is also another idea in the pipeline (pun intended) in which I hope to lend technical expertise - Hydraulic Ram Pump. Lots of info on this mature technology on the web so click on that link if you want to learn more. Basically it is a water pump that allows lifting water from its source to over 100 meters higher yet uses no source of power other than that from the source water itself. The hope at this stage is to determine the suitability of using a ram pump to move water up the mountain for farming. This would be a great boost to crop production for these mountain people. And into the future I also have a three week trip to Palawan with Craig in March and April. Dea may go with us on that trip as it is her Easter Holiday break.
I will try to post when I can from the internet cafe in Brookes Point Palawan as I get time.
Hope it will not be so long this time. Stay tuned.
Sunday, November 01, 2009
I arrived here in Calgary on schedule having left Manila during the height of the recent typhoon (Sat 8:20AM). I left Brentville in the dark with the wind howling and the rain pouring down. Had to detour around several downed trees just getting out of our 'not sheltered from the storm' subdivision.
Why would I even try to catch a Jumbo Jet during a typhoon? Well a couple of reasons come to mind. First, I wanted to go as I anticipated attending an interesting workshop in Calgary Canada. Second, both the Ninoy Aquino International Airport (NAIA) and the Northwest Airlines web sites listed my scheduled flight as on time and not cancelled. Archie my driver carefully drove north along the South Luzon Expressway toward Manila. About half of the way to the airport the rain all but ceased and the wind abated. I took that as a good sign but still somewhat expected to find NW 280 had been cancelled only after making the trek.
Typhoon Mininae (also called Santi) was also visiting NAIA though it had just that morning been downgraded from a category 1 typhoon to a tropical storm. That means the sustained winds could have dropped from 74 to 73 MPH.
My flight did leave and the 747 was airborn with only a one hour delay. At the Narita Japan airport they held the connecting flight for Philippine stragglers and I virtually walked off one plane and onto the other. There are some advantages to close connections. I've never really enjoyed the layover there. It put me a half hour late into Seattle where I had to clear customs and catch a twin engine turbo-prop to Calgary. But that transition went smoothly so here I am.
I was picked up by Sanjay my gracious host who has opened his home to me for the week. Certainly a man of hospitality. He was willing to take in a stranger as a favor to Craig who he had only met once on a plane flight this past summer. And he introduced me to rugby. Not as in playing it but as in watching it on the tube. There was a sort of 'super bowl' class game being played in South Africa which we enjoyed? with some of his friends who were having a sort of tail gate party. And there were lots of good South African goodies to munch on. It brought back memories of watching my first hockey game about 25 years ago in Edmonton in which I had great difficulty following the puck.
I had taken steps to 'acclimate' myself to the time difference with the intent of minimizing jetlag and though I did sleep soundly for about four hours I was just done sleeping at 2:30AM - so here I am. I am an early riser anyway.
The workshop begins Monday at the CAWST office here in Calgary. I'll keep you posted. All I can say about it now is that for one to travel from tropical Philippines durng a typhoon to Calgary this time of year you gotta have sand - Biosand that is. I escaped the last typhoon there by going with Craig to Palawan. He 'cawst' this!
Thursday, October 08, 2009
The BioSand Water Filter is an adaptation of slow-sand filtration that is designed for use by families at the household level. This award-winning water filtration technology was developed by Dr. David Manz, a former University of Calgary professor.
The filters are a proven, effective, and inexpensive technology. From start to finish the filters can be constructed in roughly 10 days, at an average cost of $100, which covers the raw materials, construction, transportation, supervision, training for the family in filter maintenance and personal hygiene, as well as monitoring and evaluation.
The Filtration Process
The filter is very durable, constructed from concrete, sand, gravel, and PVC piping. These materials can be found in almost every country and enable community members to help construct the filters on location.
As the filter is used, the biological layer matures and thickens, causing the flow of water through the filter to slow. Recipients of filters are trained to watch for decreased flow and can renew the filter simply by skimming off any debris from the top of the sand, and by gently stirring the sand to break-up the biological layer. The quality of source water will determine how often this process is necessary.
Wednesday, October 07, 2009
Check out BSF #2 & BSF #3 http://picasaweb.google.com/wmodavis
Sunday, October 04, 2009
I just returned from a ten day trip to Palawan
where I had the opportunity to help Craig Sutherland install seven BioSand Water Filters
for several tribal villages living in the foothills of southern Palawan. There I am helping Wilson wash sand.
The filters were made in Puerto Princesa, Palawan by the Palawan Conservation Corp. Here's a couple of the guys showing me the form they use to make them.
I have also put up several pictures on a web album that you can see at http://picasaweb.google.com/wmodavis/BioSandFiltersInPalawanPhilippines
Friday, May 15, 2009
And Michael showing proper affection for his Narra speakers.
A fun woodworking project and my first using Narra.
Sunday, May 10, 2009
I am building a pair of speaker enclosures for a teacher here at Brent. They are made from the treasured national tree of the Philippines - Narra. Click on the links if you want to know more than you wanted to know about the species Pterocarpus indicus.
Here is a couple of pictures taken after the first coat of lacquer was sprayed just last Friday. I'm not sure why I am always so surprised when I get to experience how the finish makes the grain pop to life, but it surely does.
Then hammer, chisel and pliers to remove these....
Glad I didn't try running it through my thickness planer before checking. Even with the above metal being removed there is still several pieces left in the finished cabinets - I hope without any future bad news to be reported (but let me know Mike as it features my full, unqualified, 'Tail-Light Guarantee*).
After a bit of layout work and some careful cutting etc.,
Did I design these enclosures? Nope. Though I dabbled in that in bygone days (Heath Co 1967-1973), I cannot take any credit for this design. Rather it is a copy of Mike's current speaker cabinets. Here's a picture of them side-by-side. (Hint - the particle board one is on the left and the Narra on the right.)
What do you bet he switches back to the original cabinet when he gets to his next post?
* -Tail-Light Guarantee - When my tail lights are out of sight the warantee has expired!
Monday, January 12, 2009
Keith Edwards was here in PI from California doing some teaching and we were fortunate that he and Ginny took some time off from adjusting to the time change and teaching to take a trip with us to the historic Corregidor Island. It sits at the mouth of Manila Bay and Saturday morning we took the 1hr 15 minute ferry ride out there. You are welcome to look through my web album displaying many of the sites. click on: http://picasaweb.google.com/wmodavis/20090110#
Dea pointing the ways to Tokyo and Sydney.
Dea, Bill & Ginny after the Malinta Tunnel Sound and Light Show.
Dea and I with Douglas.
Also added some of our pictures to my Facebook.