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he's mixing up his ounces with his inches
surely everybody knows an eighth of an inch is 3.5 grams |
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28mm OD, 25.4mm ID (P*nis outside diameter versus Japs eye tube Internal diameter)
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you owe him a big apology
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AFterthought - what's OD & ID mean and can you show me a link.
Pecker - do I fcuk...he added that plumbing business to the debate mid-stream and changed the original argument - I'm RIGHT - he can go'n ****! ![]() |
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inch has been exactly 25.4mm since the 30s.
So what is your argument, that the inch was bigger then, or that there was piping that diameter? There certainly is piping that diameter, you can still get it, which would make sense either as a current standard or as repairs of an old standard: https://www.screwfix.com/c/heating-plumbing/pipe/cat831500?productdiameter=28_mm |
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it's over Flo
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(https://en.wikipedia.org/wiki/Inch = "In 1930, the British Standards Institution adopted an inch of exactly 25.4 mm.")
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Thanks JC - I was unaware of the 1930s - I didn't need confirmation that I was right as I've
knew my conversions with Imperial & Metric since I was a kid - I still remember them today! It's called brainwashing ![]() I just wanted to know if he made that 28mm business up because he didn't know 25.4 - if so and it did ever happen...I'm sure it was just an approximation as it makes no sense. He's not gonna squirm his way out of this one...even if 28mm was used back in the day ![]() |
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when i was plumbing 40 years ago there were 3 copper pipe sizes 1/2" 3/4" and inch,
these changed to 15mm 22mm and 28mm ,i think thats what hes using for his guide. |
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It was always close to 25.4 according to that, although the picture of all the different "inch" sizes tool is pretty funny, have a look at the link, every country seemed to have a different size.
I actually thought for a while 25.4 was just a close approximation myself, but it made sense to make it a round number. Actually I wonder is a pint similarly rounded? Answer = no, it's apparently 568.26125 millilitres. But it'll be converted much less frequently I'd imagine. Did you ever hear the story about the Mars probe that crashed at high speed into the planet as different engineering teams got a unit mixed up and the flight model calculation was using imperial instead of metric? It was .... the Mars Orbiter.https://www.latimes.com/archives/la-xpm-1999-oct-01-mn-17288-story.html |
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AFTERTHOUGHT's explanation makes sense. Your mate was talking about the thickness of the piping, while you were considering only the diameter of the bore.
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Advantage b/sitter
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Carpet - that's good enough for me - thanks.
Screaming - I now get Afterthought's post...what OD & ID mean - it sounds more than plausible now but that mate of mine is STILL WRONG! ![]() Mystery solved - thanks guys ![]() PS - Capt. F...you can F-off ![]() |
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Speaking of plumbers or heating engineers we had a gas leak last week or so we think got the gas board out and yes we have a gas leak but he couldn't find it in the half hour time allowed for each emergency call out so he he capped off our gas and I had to get my own gas engineer he eventually found the cause of the leak our is a new build we have been in the house from new we bought it about 5 years ago it turns out persimmon had hammered 2 nails through the main gas pipe the gas pipe was unprotected and far to close to the skirting board in the living room the gas supply enters the house from the gas meter below our front room window I have contacted persimmon and sent off a copy of the engineers report and several photos of the damage I am foooking raging
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