Friday, January 11, 2013

Portable Solar Water Distiller by Footbear

Portable solar water distiller
Here is a design for an inexpensive and easy to make
portable solar water distiller.

It works by allowing evaporated water to collect in a reservoir
created by the space between two concentric plastic bottles.

The reservoir is another plastic bottle covered in a black colored
fabric to make it hotter than the surrounding structure.

The collector is kept at a lower temperature using evaporative cooling.

The temperature differential created by the evaporated cooling
should allow the condensation process to happen a little faster
than it would without it.

Step 1


You will need three plastic bottles.
Two that have roughly the same diameter around the widest part.
One of those should have a tapering neck, much like a wine bottle.
I couldn't find plastic wine bottles, though I have heard that they
are being introduced in Europe.  So I went with the arrowhead
sparkling water bottle shown.   The third plastic bottle should
have a smaller diameter around the widest part.

a hot knife for cutting plastic
a vapour mask to avoid fumes
one or more white socks
one or more black socks
some tape

Step 2

Cut the bottoms off the larger bot

Using the hot knife with great care, being cons
Cut slowly through the plastic bottles, removin

Step 3

Insert the tapered neck bottle into the larger domed bottle

Remove the cap from the tapered neck bottle and leave the cap on the large domed bottle.

Slide the large bottle with the tapered neck inside the large domed bottle so they are concentric.

Leave a bit of clearance between the cap of the domed bottle and the opening of the tapered bottle.

Step 4

Remove the top portion of the smaller bottle

Using the hot knife, wearing the vapor mask, carefully remove the very top portion of the
 smaller water bottle as illustrated.

Cover the smaller bottle with the black sock and fill with water

Slide the black sock onto the bottom of the smaller bottle as illustrated.

Fill it with the water to be distilled.

Saturate the white socks and put them over the top bottle

get the white socks soaking wet and then slide them over the top of the two larger bottles

Set the larger bottles on top of the reservoir

Set the larger bottle construction with the wet white sock on top of the lower reservoir.

Place in full sun and wait a very long time

Place the completed distiller in full sun on a level surface and leave it for many hours.  With any luck, pure distilled water will collect and condense inside the enclosure.

When enough water has collected in the reservoir, remove the top portion cap and pour the distilled water from the reservoir.

Tuesday, January 8, 2013

How to Make Water from Thin Air

Clean Technica (

Friday, January 4, 2013

Tent Showers for Camping or Survival Lifestyles

D.A. Barber, The Writers Network
If you spend a lot of time camping in remote areas of the great outdoors, you have probably considered buying a tent shower that is designed to be both portable and easy to set-up. Tent showers for camping have become a popular “necessity,” replacing the days of using a bucket or canvas bag hanging on a tree to clean-off while openly exposed to the elements. These tent showers come in many styles with a variety of options, including “solar” tent showers that can deliver much appreciated hot water in the most remote areas.
If you are a “car camper,” you have the option of additional amenities. Tent showers can serve double-duty by adding a portable camp toilet. And portable propane water heaters can guarantee hot water on demand.

Tent Shower Options
When contemplating buying a camping tent shower, there are a few factors you’ll want to consider. Of course you’ll want it to be portable, as well as put-out the volume of water you would expect from a shower. You also need to consider the type of camping you do. If you hike in to remote areas, then weight will be a consideration. But if you “car camp” and simply pull your vehicle into a campsite and unload, then you can opt for a more elaborate tent shower.

While most enclosed tent showers are roughly 4 feet by 4 feet, their height can vary. Others may not even have roofs, and in fact, only cover your body from your knees to your shoulders. When choosing your shower tent, you’ll want it to be roomy enough for even the largest adult, including space to for drying-off. The inside of the tent shower should include water-proof pockets for personal hygiene products as well as a towel rack. Some tent showers also include a remote-controlled light for nighttime showers and security.
Depending on your budget, some tent showers, like camping tents, come with screened windows for cross ventilation. Others are designed with ground-level mesh panels for drainage and ventilation.

Most tent showers have floors to keep you from getting muddy, where the water simply drains out into the environment. But some sensitive wilderness areas and campgrounds don’t allow shower water run-off, so there is an optional "capture floor" available to catch the soapy water and drain it into a container using a standard garden hose.

Finally, like everything else, you get what you pay for. Your tent shower should be sturdy enough to withstand strong winds and include metal, not plastic stakes.

Solar Tent Showers
A favorite tent shower for those who hike into remote areas for extended stays are the solar-heated showers. These typically include a 5-gallon solar water bag which heats water. These are light - between 10 and 19 pounds, easy to set-up and come packed in there own carrying bag. Some can even fit in your backpack.

Of course solar camping tent showers rely on the sun’s energy to heat the water, so you are out of luck on cloudy days.

Propane-Heated Tent Showers
If all you do is car camping with the family and friends, then you have the option of carrying a heavier, bulkier style of tent shower to accommodate a greater number of shower “customers.” That means a more powerful shower with a greater water capacity, including hot water.

Propane tent shower heaters use bottled propane gas to heat the water, while a battery-powered – either the 12-volt battery from your vehicle or a separate battery pack - powers a pump that pushes the heated water through a hose to the shower nozzle under more pressure than the gravity tent showers can produce.
Some well-known name brands that offer portable propane shower water heaters include Coleman, Primus and Zodi.

The Hot Tap by Zodi is typical of portable propane camp shower heaters. It is portable, small and self-contained. To heat the water there is a single stainless steel burner that uses a camp stove-size propane tank, while the water pump is powered by 4 D-cell batteries. The 4-gallon storage tank holds enough water for a 10-minute shower, which is fed through an 8-foot hose to a water-saving shower head.

Tent Showers with Toilets
Your tent shower can perform double duty if you also take advantage of a portable camp toilet. Placing a camp toilet in your tent shower transforms it into a complete bathroom at campsites that do not offer any facilities. While this works great for smaller camping parties of two or three people, larger groups of campers usually use a separate tent for the toilet so there is no waiting.

Any of these tent showers will allow you to take the luxury of a shower on the road with you for your next camping adventure. Article Link.

Portable bikes:

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