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File: filtration.jpg (381 KB, 1128x1318) Image search: [iqdb] [SauceNao] [Google]
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Hi /diy/

I'm trying to come up with a simple and relatively economical way to filter water from a river. This water will be collected in a water container and be used to shower with (not to drink) even though the water is relatively clean as far as rivers go I'd rather filter, and sterilize it first to be on the safe side.

many of the existing water filtration solutions are either for:

1) small scale wilderness/survival purposes (katadyn,sawyer,lifestraw etc)
2) large scale installations for drinking in african villages
3) home point of use drinking (e.g berkey)
4) large scale industry use

So none of those are really suitable for collecting and filtering a large amount of water. Either they're too small with a slow flow rate, or they're gigantic installations

After a bit of thinking, I figured out the most economical non chemical solution is to buy standard 10" filter kits and just repurchase when they become clogged. The workflow will be like this

1) pump water directly from a hose through sediment prefilter,
2) then through a finer filter (0.5 micron)
3) then through a UV filter, into a holding container
22 replies and 3 images submitted. Click here to view.
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>>1000490
There's a guy here who's done a similar thing.

https://www.youtube.com/watch?v=ZOy4bPO-TkU

The pump I will be using instead is this:

>http://www.hozelock.com/our-products/watering/pumps/ultra-metal-garden-pump/

datasheet >http://www.hozelock.com/wp-content/uploads/2015/06/7816-7819-uk-33801-002-GardenPump.pdf


For filters, I want to use
>http://www.screwfix.com/p/high-performance-water-filter-kit/37975#product_additional_details_container

datasheet:...
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>>1000491
The first filter says in the manual it connects directly with 1/4" plastic tubing.

The second filter seems to say it connects with 3/4" male NPT nipples.

The problem is I'm already stuck, I have no idea how to connect the hose to the respective water filters.

The closest thing I have found that looks like it might work for the second filter at least is https://www.amazon.co.uk/Hozelock-2159-9000-Adapter-hoses/dp/B0034G5NR2

But I really have no idea as it seems like most people...
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>>1000490
A river? How the hell are you getting away with that? most rivers are highly protected by the state. Either way I would not use water from it. In my area at least they are pretty much toxic and polluted. The whole house filters you show are a good start. Creek water or rain water would be better. A sand bar or some light, easily replaced prefilter should be first. UV is a waste of power and money. Just get a 2 micron if you need to drink or eat with it.

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So I'm at the meetup in Toronto with I Build It / John Heisz.

Thoughts? Should I ask him what he thinks of /diy/?
21 replies and 2 images submitted. Click here to view.
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Told him about 4chan. Here's never heard of it.

Says he hates forums. Welp.
>>
>>1000360
Nice thread. Wrapped up well. I like ones with closure.
Good thing this isn't a forum, it's an image board dedicated to Cambodian Rice Paintings.
>>
Tell him to throw a bass in his voice. It's like listening to a palm sander when he talks.

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A few months ago I came here looking for a chain that wasn't just loose links, but could both coil up and be rigid and straight when arranged correctly. Someone mentioned "barrel chain", but I came to the conclusion that chain of any type would be too heavy. So I'm back with a new method, using spring steel similar to a tape measure.

A tape measure will extend and stay straight for about...what 9-10 feet when used correctly? I want to make a device that could be applied as well as improve the design of a tape measure to make it extend 30 ft and stay...
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10 replies and 2 images submitted. Click here to view.
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If you could design it in a way that when the tape comes out of the end of your roller it is in a triangle shape, you should be able to get it to go a long distance.
>>
>>1000231
yes i thought of that, but it needs to function from most angles. A triangular design would crimp sideways. The best design I can think of at the moment is something resembling a chinese yo yo with a coiling steel spring.
>>
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>>999910
Like this?

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Hurricane Season is here, I'm preparing my game room as the family shelter after we return from evacuation. I want to use quiet, fuel efficient inverters because last major hurricane it was nearly impossible to find gas, I need to shitpost on 4chan using my comfy desktop computer, and thieves won't easily here them humming away.
>Have a Wen 52600i 2000 watt inverter generator aka Yamaha clone for camping / power tools
>thinking of buying 2 more because they are cheap, simple, and work well.
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>>999351
Should also note I am a fan of redundancy and flexibility. Figure if 1 generator goes out, I just have to choose between ac and shit posting.
>>
>>999351
I cant tell from your picture, is the output 120 only or 120/240 depending on the receptacle you plug into.
>>
>>999476
I'm pretty sure it is 120 with both legs powered from same hot in phase, so pic related would kill 240 devices, but if distribution downstream downstream only goes to 120 stuff, should be a non issue, just has half power.

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I need to sharpen a lot of commercial mower blades. I currently use a classic two wheel
bench grinder light duty. I want to make a jig to get an even, quick and constant result.
But the god darn thing has no tool rest and it doesn't really make sense to adapt something.
I'm not sure what kind of steel, other than "1/4" (6.4 mm) thick heat-treated steel" that sells
for about $50 USD for a set of three.

Should I buy a beefy heavy duty bench grinder or a decent belt sander?
9 replies and 4 images submitted. Click here to view.
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File: 1452379879282.jpg (2 MB, 1899x3368) Image search: [iqdb] [SauceNao] [Google]
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This is baby shit mang. I made these jig plans in my head in like 30 seconds, so let me know if there need to be changes.

You need to pieces of steel, one angle, one flat.

The circle thing is your grinder. You're gonna want to weld your angle piece to the flat one at the angle you want it cut at. Then use a clamp or vice grips to secure the blade to the jig, with the end you're sharpening hanging off the side so you wont be grinding on your jig. Hows that sound?

>10,000 years in ms paint
>>
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>>999344
Wrong image
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>>999344
freaking love reading about a woman needing therapy instead of learning about sharpening blades

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Hi /diy/ I'm hoping to paint up some weights I got off craigslist they're a little beat up and have some rust on them. Do I need to do anything special to prep them beyond cleaning them off or do those rust paints really work and I can just paint over it?

Pic related
16 replies and 5 images submitted. Click here to view.
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>>998218
No rust paints dont work
use a wire wheel or a wire brush and remove all the rust before you paint.
>>
>>998218
You can do almost anything with the power of flex seal!
>>
Buy a small tin of Por15, a pack of cheap brushes, and wire wheel the rust off. Then clean the weights really well, let dry and then brush the Por15 on. They'll look brand new and never rust again.

How can I stealthily disable my neighbor's broken, obnoxiously loud outdoor A/C unit?
39 replies and 1 images submitted. Click here to view.
>>
Offer to fix it for free.
>>
I think he just fixed it after the hail storm
>>
>>997404
/thread
Don't be a nigger, do it right.
Otherwise you well end up slowly living an increasingly spiteful each day ending up all alone on your deathbed...

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Why is it so hard to make one?! First, I try using my raspberry pi which doesn't work (cause its a B+,) than I tried making one through the good ol' transistor radio schematic (with the oscillator chip and whatnot.) I don't have the parts, so I can just drive to a radioshack, right? But they are closing all of their stores! Ugh. Are there any quick alternatives I can try for making an fm radio station (online, through my raspberry pi B+, etc?) And if /diy/ can help me, I'll give you all the frequency so if you're in my area you can listen to some tunes!...
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>>997028
Why, how are you going to use it ? Like streaming music thru it and everyone that actually listens to 420 mhz is going to listen to your music as long as they are 20 yards away in clear sight from you ?

Its pointless, give up. Join the Ham radio master race
>>
>>997030
sure, I'll join "Ham radio." All I want is a want to broadcast music across my neighborhood for other friends to listen to. I'll look into ham radio.
>>
>>997035
Y-you have neighborhood friends?
...lucky...

Health and safety. Would be pleased he's wearing his PPE.
65 replies and 9 images submitted. Click here to view.
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>>993789
wire isnt frayed.
whats the issue? not everyone drops their expensive power tools like you.
>>
>>993891
>extension lead falls 240 volts surges through the swimming pool.
>>
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>>993891

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>He doesn't live in a shipping container

What's wrong with you?

Do you do anything yourself?
108 replies and 23 images submitted. Click here to view.
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>>992866

shipping containers are more trouble then they worth

move along
>>
>>992868
>shipping containers are more trouble then they worth
Why? They're only $2,000
>>
>>992869

transportation, plumbing, electric installation, heat isolation, water proofing, reinforcement, interior design etc. etc.

File: Joint A.png (68 KB, 904x863) Image search: [iqdb] [SauceNao] [Google]
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I need to make a few joints like this somehow, most likely out of plastic, for a posable model I am making. I don't have any idea where to even begin making something like this. Any advice? I hope those measurements are clear enough to follow.
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File: Joint B.png (29 KB, 875x475) Image search: [iqdb] [SauceNao] [Google]
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Here's how it would look put together.
>>
>>1000224
Um, ever heard of 3D printing?
>>
Yeah man, I don't have one and I don't know anyone that has one. Also I live in the middle of bumfuck nowhere. Is there like a website or something where I could upload models to have printed and shipped for a reasonable price?

File: images (7).jpg (10 KB, 592x248) Image search: [iqdb] [SauceNao] [Google]
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Hey /diy/
I'm looking for something that you can basically paint onto a leather sole to protect it from wear. I was thinking bitumen may work but I'm not sure if it would adhere sufficiently and withstand the abuse soles have to. Also it may melt on hot surfaces.
14 replies and 3 images submitted. Click here to view.
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>>999918
>I'm looking for something that you can basically paint onto a leather sole to protect it from wear. I was thinking bitumen may work but I'm not sure if it would adhere sufficiently and withstand the abuse soles have to. Also it may melt on hot surfaces.
--also it would leave ugly black marks on any floors, when you dragged your feet even a tiny bit. Which you probably do, because most people do--you just never saw direct evidence of it before.

It would help to explain...
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I know hippies used to whip up a mixture of shredded tire rubber and epoxy to paint their moccasins with...

But I mean, in modern times there's no reason not to just use those slap-on strips of Vibram you see everywhere.
>>
Just apply shoe goo the soles.

File: bnc and power cable.jpg (17 KB, 400x400) Image search: [iqdb] [SauceNao] [Google]
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I need this cable for my cctv system. The yellow is coax for video and the other part is for power. My question: are power cables (red and black) graded specifically for AC or DC?

I need to power my camera with 24vac but the reviewers on Amazon keep saying it's for DC cameras.
7 replies and 1 images submitted. Click here to view.
>>
Wires are rated for voltage
They dont give a shit if its AC or DC they just conduct
So if the wire can handle the peak voltage present In The system your golden
>>
>>999764
Thank you.

But I'm looking at something like this: >https://www.surveillance-video.com/accessory-st-pmj60b.html/
and it doesn't mention any voltage tolerance. Do I just assume that it can handle at least 24vac?
>>
>>999764
>Wires are rated for voltage
>They dont give a shit if its AC or DC they just conduct
That's what I always thought, but seeing the description of "DC Power Cable" and all of those mouth breathers on Amazon calling it a DC cable made me question it.

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Hi!
I want to water my plants on my balcony while i'm not there.
I bought an electrovalve which works with 12v, 8W, and I want to supply it, or not, with a laptop. I thought the serial port would have do that, but I can't get any current from it, according to my voltmeter.
Is it possible, do you have any ideas?
16 replies and 2 images submitted. Click here to view.
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This project is probably above your current understanding of how serial ports work.

Serial ports are communication "devices"
They are really only used to send and receive data.

What you need is a controller board hooked up to the valve.

valve-->controller board-->serial port

The serial port sends a signal to the controller board.
The controller board sees the signal and tells a relay to turn on/off the valve.
>>
The laptop would be used as a power supply and a timer
>>
You're right I don't know serial ports much..
I just want to get some 12v from my laptop. I thought I would have used a linux command like rtcwake, which wakes the computer and that way the 12v from anywhere would be active. And then, 1h later the computer would go back to sleep for 23h.. something like that. I know there is some 12v on the cd drive, but it would be easier to get it from an external port

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I took of the CDI box from my motorcycle as I suspect it's faulty and I'm replacing it. Looked like this from the bottom. What the hell is that shit? I digged a bit into the bottom which is soft rubber and it's filled with that stuff.
24 replies and 4 images submitted. Click here to view.
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looks like gravel
wtf, did some one dropped that thing on the ground during potting (re-potting after repair?!? its not serviceable)? i doubt, even high speed, projected gravel would embed itself so neatly in that
really weird indeed
>>
I've honestly never seen anything like that
Not that I'm really in the habit of buggering around with ignition systems that often, but I've not seen it in anything else electronic!
>>
>>999464
Is the stuff that looks like gravel actually gravel? Or is it just more of the rubbery stuff?

I would guess it's just more of the potting compound and it just didn't mix right or maybe it was the bottom of the barrel.

The rubbery junk is potting compound. You pour it on electronics to protect them from vibration and moisture. It also makes them totally not servicable. There's nothing to fix because it's such a pain in the ass to remove.

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