Single pipe steam radiators in apartment
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I know you guys are mostly into digital technology but anyway for anyone who knows plumbing pretty well, particularly steam radiators, I've got 4 in this apartment I'm in on the 3rd floor. It's a single return system meaning the radiators fill with steam and ideally have a shutoff valve which is steam/heat activated and shuts off after letting air out, then I believe after the radiator cools they open so that air can re-enter to let the condensed water (from the steam) return back down the pipe
Problem is two of my 4 radiators in here have this cap, rather than a valve. Ive made sure the two with valves (vents I should say) are functioning right, but the one in my bedroom in particular I have been just leaving the cap (again not a vent for some reason) open... because it was being really noisy. And up until today that was bad, as far as noise but suddenly for some reason it entirely filled with steam for the first time and started shooting out the side of the radiator. I put a rubber glove on and put the cap on it...
Should I for now, until I can get the landlord to put vents on these, or do it myself with new vents and teflon tape, be opening the cap to allow air inside so the condensate can drain between cycles? What a pain, but I'll do it even if it means more disrupted sleep for now.
Otherwise in theory, based on what you guys know about physics would happen if
1) I leave the cap firmly on as it is now, just as a cycle has finished.
2) Open the cap in a few minutes, let the condensate drain and then re-cap it. I believe the clanking is happening in part from a capped radiator which is stupid, since it's got NO controllable shutoff valve , only ONE does...
because basically trapped water is hitting the steam every time it does a cycle.
3) Is it safe to just let the steam comeout for now even though is pretty heavy and so forth? I'm *assuming* the landlord was smart enough to have a machine which adds water to the boiler but really don't know.
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Inspired by the dumpster diving thread and the interesting salvage people find but may not necessarily find a use for.
Considering people around /diy/ tend to be pretty thrifty and also have an eye for the 'potentially useful', does anyone in here dabble in selling scrap metals or electronic scrap to scrapyards and recycling companies?
I've been considering dabbling in it a bit, since I consider the value of my labor negligible because I like fiddling with things in my spare time, like taking things apart or stripping wire while I watch the youtubes, and sorting items is basically how I relax.
I don't expect to make any significant amount of money, it's more just for fun and to get rid of scrap wires that I felt bad just tossing, and it makes me feel a bit better knowing it may be used and won't end up in the lungs of some poor Chinese or Pakistani or Ghanese e-waste salvager.
For those who do sell scrap, how far do you go for it? Melting down circuitry for gold? Dumpster diving? Ever buy cheap shit at thrift stores just to make a few cents profit? Just idly stripping wires? Not even bothering stripping wires? Illegally melting pennies (pre-1982 especially)? Even more illegally stealing copper pipe?
What materials do you salvage? Just metals? Plastics? Whole components?
Or, alternately, no one here gives a shit about scrapping for money and the thread dies.
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Hey DIY, Where can I buy semi-thick metal foil? I need a small, thin sheet of metal for a project. It needs to be thin enough that I can write on it with a nail, but thick enough that it doesn't get pierced in the process. Any idea what a good thickness would be, or where I could buy some?
Pic related is what I'm planning on making for an Art Gened, a Roman Curse tablet