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  • pcooper2 commented on More Cowbell's instructable Waterproof Underground PVC Cache27 days ago
    Waterproof Underground PVC Cache

    "... consider permanently gluing the ends shut ..."That was my thought, exactly. If a moisture absorber is placed inside an hermetically sealed tube, the air inside will be as dry as in the Sahara Desert and will stay that way forever. If storing metal objects, another precaution might be to put an oxygen absorber in, too, or put a chunk of dry ice in the bottom end and wait for it to completely sublimate before sealing the upper end. Since carbon dioxide is heavier than air, it will displace the oxygen and the excess will spill over the top. If one has access to compressed carbon dioxide or nitrogen gas, purging oxygen and moisture could be done even quicker.

    Since we're (presumably) storing something valuable, I'd go the extra step of discarding the stock zinc-plated hardware that comes with the test plug and replacing it with stainless steel parts. At current prices, it would add about $3 to $4 to the cost of the project.

    There's a reason such people work in bureaucratic government jobs where critical thinking is not needed, nor even permitted.

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  • pcooper2 commented on ptorelli's instructable A Self-Contained Data Logging Anemometer2 months ago
    A Self-Contained Data Logging Anemometer

    Using GPS or some method other than the vehicle speedometer to calibrate the anemometer is crucial, as speedometers often display 3% to 5% higher than actual speed, and are dependent on wheel diameter, which can vary with temperature, tire inflation pressure, and whether the vehicle is equipped with the correct tires.

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  • pcooper2 commented on Barzok's instructable Weather Station Shelter2 months ago
    Weather Station Shelter

    What type of glue did you use to assemble the instrument shelter? Several years ago I repaired a street-side mail box for a friend. The mail box has a real cedar shingle roof and to form the peak of the roof I glued two thin redwood laths together with urethane glue. It required clamping the parts for 24 hours while the glue cured, but after several years of exposure to sun and rain there is no sign of the glue joint failing. It is truly remarkable stuff.

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  • How to Completely Refill a 1lb "disposable" Propane Bottle

    It happens sometimes, especially with old cylinders where water may have entered the valve and corroded the valve seat. The chilling effect of bleeding gas can also make the valve seal hard, so it won't reseal properly. Sometimes I wait a minute for the valve to warm up, then briefly pull the relief valve stem with the pliers and let it snap back. That usually gets the valve to seal properly.

    Your comment is not helpful.I have been refilling disposable cylinders for over 30 years for personal use without so much as an incident, much less an accident. The worst that has ever happened is that on rare occasions, after many refills, the Schrader valve core gets leaky, so I either have to put the cylinder to use right away with a grill or stove, or set it outside for a day or two where it can leak away safely, forfeiting a pound of propane.

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  • pcooper2 commented on WYN soldier's instructable Change a watch battery without tools1 year ago
    Change a watch battery without tools

    If you could replace the battery without the use of a safety pin and scissors, only then could you claim that it was done "without tools".

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  • pcooper2 commented on jenfoxbot's instructable Raspberry Pi Irrigation Controller1 year ago
    Raspberry Pi Irrigation Controller

    It appears that nothing in this project uses more than 24 volts, and if a safety agency approved step-down transformer is used to produce 24 VAC for the solenoid valves, the user will never be exposed to more than 24 V RMS. As such, the "high voltage" disclaimer could be removed. In North America, 24 volts or less is classed as "Safety Extra Low Voltage".

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  • One Cup Coffee Brewing, Cheap (Free!) and Easy!

    Although I commend you for your ingenuity, Melitta makes a Pour-Over 1-Cup Brew Cone, designed to be set on top of a mug or cup. They use Melitta #1 disposable paper filters, into which one would put a tablespoon or two of ground coffee and then slowly pour boiling water over it. These gadgets have been around for decades, but the improved version has a cut-away section near the bottom, so one can see into the mug to prevent over-filling. If I were working in an office, I'd keep one of these in my desk drawer.Not being much of a coffee connoisseur, in the absence of proper paper coffee filters, I would risk using a piece of paper towel. One can also buy "permanent" filters in various sizes, although I'm not sure if anyone makes one equivalent to the Melitta #1 paper filte...

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    Although I commend you for your ingenuity, Melitta makes a Pour-Over 1-Cup Brew Cone, designed to be set on top of a mug or cup. They use Melitta #1 disposable paper filters, into which one would put a tablespoon or two of ground coffee and then slowly pour boiling water over it. These gadgets have been around for decades, but the improved version has a cut-away section near the bottom, so one can see into the mug to prevent over-filling. If I were working in an office, I'd keep one of these in my desk drawer.Not being much of a coffee connoisseur, in the absence of proper paper coffee filters, I would risk using a piece of paper towel. One can also buy "permanent" filters in various sizes, although I'm not sure if anyone makes one equivalent to the Melitta #1 paper filter. Cleaning permanent coffee filters can be a messy undertaking, so for convenience at work disposable paper filters that contain the wet grounds is the best way to go.

    Although I commend you for your ingenuity, Melitta makes a Pour-Over 1-Cup Brew Cone, designed to be set on top of a mug or cup. They use Melitta #1 disposable paper filters, into which one would put a tablespoon or two of ground coffee and then slowly pour boiling water over it. These gadgets have been around for decades, but the improved version has a cut-away section near the bottom, so one can see into the mug to prevent over-filling. If I were working in an office, I'd keep one of these in my desk drawer.Not being much of a coffee connoisseur, in the absence of proper paper coffee filters, I would risk using a piece of paper towel. One can also buy "permanent" filters in various sizes, although I'm not sure if anyone makes one equivalent to the Melitta #1 paper filter....

    see more »

    Although I commend you for your ingenuity, Melitta makes a Pour-Over 1-Cup Brew Cone, designed to be set on top of a mug or cup. They use Melitta #1 disposable paper filters, into which one would put a tablespoon or two of ground coffee and then slowly pour boiling water over it. These gadgets have been around for decades, but the improved version has a cut-away section near the bottom, so one can see into the mug to prevent over-filling. If I were working in an office, I'd keep one of these in my desk drawer.Not being much of a coffee connoisseur, in the absence of proper paper coffee filters, I would risk using a piece of paper towel. One can also buy "permanent" filters in various sizes, although I'm not sure if anyone makes one equivalent to the Melitta #1 paper filter. Cleaning permanent coffee filters can be a messy undertaking, so for convenience at work disposable paper filters that contain the wet grounds is the best way to go.

    Thanks for the tip, but it would help if you'd spell the name of the product correctly to give us a fighting chance of finding it with a search engine. Search for "T Sac Tea Filter Bags". These single-use natural paper filter bags are made in Germany and distributed in the U.S. by Harold Import Company, Inc. According to the description at http://www.hickitchen.com, they're made in four sizes, although only the #1 and #2 size are shown on their site.

    Thanks for the tip, but it would help if you'd spell the name of the product correctly to give us a fighting chance of finding it with a search engine. Search for "T Sac Tea Filter Bags". These single-use natural paper filter bags are made in Germany and distributed in the U.S. by Harold Import Company, Inc. According to the description at http://www.hickitchen.com, they're made in four sizes, although only the #1 and #2 size are shown on their site.

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  • pcooper2 commented on mattinflow's instructable Stevenson Screen - weather station1 year ago
    Stevenson Screen - weather station

    If you're going to feed your temperature readings to a weather service, a home-built weather station would need to be carefully vetted and tested against one built in the traditional way. The original Stevenson screens were made of wood, painted white and were in use for more than a century. Some stations have recently been set up with vinyl Stevenson screens, and it is not clear if their performance is identical to the original wood screens. There is a suspicion that part of the "global warming" phenomenon may not be real and may be due to differences in materials used in thermometer housings. If you're building this screen for your own use, though, it will most likely to the trick for gathering consistent local relative readings.

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  • pcooper2 commented on AndyGadget's instructable Slug Trap from Recycled Water Bottles1 year ago
    Slug Trap from Recycled Water Bottles

    Most commercial baits use a chemical called metaldehyde to kill the slugs and snails. It breaks down into harmless components and does not poison the soil and environment. Although the baits are rather overpriced for what they do, if you can procure a supply of metaldehyde, a white powder in pure form, a small amount will go a long way and is quite economical, even compared to cheap beer.

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  • How to bypass Android 4.4 (KitKat) external SD write restrictions without root

    Why mess around with a phone? Just install the SDHC card in a card reader on a Linux desktop or laptop machine. The card reader can be built-in or connected via USB. You can then do <i>anything</i> on the card — create, delete, move files and directories and change file permissions.

    Why mess around with a phone? Just install the SDHC card in a card reader on a Linux desktop or laptop machine. The card reader can be built-in or connected via USB. You can then do anything on the card — create, delete, move files and directories and change file permissions.

    Why mess around with a phone? Just install the SDHC card in a card reader on a Linux desktop or laptop machine. The card reader can be built-in or connected via USB. You can then do anything on the card — create, delete, move files and directories and change file permissions.

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  • paint your house address on the curb

    I think the original stencil font, which you called "boring", is more legible than the version you picked. If these numbers are for the benefit of emergency vehicles, delivery services, etc., a font should be chosen for maximum legibility, at distances up to 30 meters/100 feet.

    While it is true that curb numbers wouldn't be visible when the streets and curbs are covered with snow, they are still useful the rest of the year.

    Whether one lives in an area with snow or not shouldn't make any difference. The concrete needs to be dry and relatively warm to be painted, so this kind of a project wouldn't be feasible during rainy, snowy or freezing periods.

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  • pcooper2 commented on whosdadog's instructable Automatic Pool Water Filler2 years ago
    Automatic Pool Water Filler

    Use a high-quality industrial hose that is in good condition and make sure the water pressure is 60 psi, or less, and it should be fine during a summer absence of a month or two.

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  • Keep rats out of your car with moth balls.

    Avoid using mothballs in any occupied space where you can smell them. Mothballs are usually made of paradichlorobenzene (1,4 dichlorobenzene), a substance that damages heart muscle.

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