On 07/07/2010 9:38 PM, Mike Raiford wrote:
> On 7/7/2010 1:14 PM, Stephen wrote:
>> On 07/07/2010 6:52 PM, Jim Henderson wrote:
>>> The water that goes to the upper floor is full of flouride and other
>>> chemicals that give it an excess of anti-gravitrons, allowing it to
>>> easily get up.
>
>>> The bigger question is why doesn't the tank fly off into space?;-)
>>>
>>
>> The ball cock holds it down. All those chemicals stop it from lifting.
>> ;-)
>>
>
> So, that's how geysers work .... <stares in astonished wonderment>
>

There are more things in Heaven and Pov, Mike, Than are dreamt of in 
your philosophy. ;-)

-- 

Best Regards,
	Stephen

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On 07/07/2010 10:50 PM, Jim Henderson wrote:
> On Wed, 07 Jul 2010 19:14:37 +0100, Stephen wrote:
>
>> On 07/07/2010 6:52 PM, Jim Henderson wrote:
>>> The water that goes to the upper floor is full of flouride and other
>>> chemicals that give it an excess of anti-gravitrons, allowing it to
>>> easily get up.
>>
>> LOL
>
> It's all a conspiracy, I tell ya... ;-)
>

Mercy buckets, its true. :-)

>>> The bigger question is why doesn't the tank fly off into space?;-)
>>>
>>>
>> The ball cock holds it down. All those chemicals stop it from lifting.
>> ;-)
>
> Well, that would explain it. ;-)
>

Some chemicals inhibit rising, whilst others actively promote it. O_o

-- 

Best Regards,
	Stephen

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> Every car I've ever seen has hinges which try to force the door fully open 
> or fully closed. Now you can see why fully closed would be a good idea. 
> But if you're parked in a tight space, it's really irritating that you 
> can't let go of the door because you'll either get a door in your face, or 
> the door will spring open and scratch up the car next to you.
>
> Such a simple problem, yet nobody has solved it. WHY?!! >_<

Huh? Every car I've had for decades has a soft "stop" half way where the 
door is quite stable.  You can then push it a bit harder and it locks all 
the way out.  Try it!

> Why are the downstairs taps connected to the mains, but the upstairs ones 
> connected to a tank?

To stop you having mains pressure cold (~1-5 bar) next to tank pressure hot 
(~0.2 bar) in the bath.  Imagine what happens when you connect one of those 
old-fashioned shower adapters to the bath taps, turn hot and cold to full 
and then turn *off* the shower head.  Fortunately now we have taps with 
back-flow prevention valves and fancy mixer taps to avoid this problem. 
Many houses don't have a cold tank, and some won't have a hot tank either 
(the hot is heated on-demand by the boiler).

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>> Why are the downstairs taps connected to the mains, but the upstairs
>> ones connected to a tank? Why do we even *have* a tank??
>>
>
> Because the mains does not have enough pressure to push the water upstairs 
> at a tolerable force. If it weren't for the tank, you'd turn on the faucet 
> and get barely a trickle... With the tank on the roof, you get nice water 
> pressure.

It's different in the UK, the mains pressure usually equates to about 10-50 
metres plus of head.  Any water from a tank in the roof is usually *way* 
lower pressure than mains.  For example you can easily block off a fully 
open hot tap with your thumb with very little force, but it is tricky, if 
not impossible to do the same on a mains pressure cold tap.

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> Huh? Every car I've had for decades has a soft "stop" half way where the 
> door is quite stable.  You can then push it a bit harder and it locks 
> all the way out.  Try it!

Doesn't seem to work with my Renault Megan III.


does work there.

>> Why are the downstairs taps connected to the mains, but the upstairs 
>> ones connected to a tank?
> 
> To stop you having mains pressure cold (~1-5 bar) next to tank pressure 
> hot (~0.2 bar) in the bath.  Imagine what happens when you connect one 
> of those old-fashioned shower adapters to the bath taps, turn hot and 
> cold to full and then turn *off* the shower head.  Fortunately now we 
> have taps with back-flow prevention valves and fancy mixer taps to avoid 
> this problem. Many houses don't have a cold tank, and some won't have a 
> hot tank either (the hot is heated on-demand by the boiler).

My house doesn't have and has never had a hot water tank. As you say, 
water is heated on-demand. Which, come to think of it, means that only 
the cold tap is fed from a tank. Given that there's no noticable 
difference in water pressure between the two, that makes the need for a 
tank even more dubious.

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> Doesn't seem to work with my Renault Megan III.

That would be the first car I've ever seen (and I've seen lots way older and 
smaller than yours!) that didn't have such a feature.  You really mean that 
once you un-latch the door it is free to swing out to 100% open?  Yes, I can 
imagine that would be really annoying in car parks and garages.

> My house doesn't have and has never had a hot water tank. As you say, 
> water is heated on-demand.

Was it like that when the house was built?

> Which, come to think of it, means that only the cold tap is fed from a 
> tank. Given that there's no noticable difference in water pressure between 
> the two, that makes the need for a tank even more dubious.

Yes, it seems odd to build a house like, as you don't need a hot or cold 
tank with an on-demand boiler.

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>> Doesn't seem to work with my Renault Megan III.
> 
> That would be the first car I've ever seen (and I've seen lots way older 
> and smaller than yours!) that didn't have such a feature.  You really 
> mean that once you un-latch the door it is free to swing out to 100% 
> open?  Yes, I can imagine that would be really annoying in car parks and 
> garages.

As far as I can tell...

(The other fun thing is that if you swing it open, it hits the end and 
immediately bounces back in your face.)

>> My house doesn't have and has never had a hot water tank. As you say, 
>> water is heated on-demand.
> 
> Was it like that when the house was built?

I can't say for certain. It's been that way ever since I lived here. 
Then again, my dad's house is on the same estate and that does have a 
hot tank, so...

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> As far as I can tell...
>
> (The other fun thing is that if you swing it open, it hits the end and 
> immediately bounces back in your face.)

Sounds broken to me, does the passenger door behave the same way?

> I can't say for certain. It's been that way ever since I lived here. Then 
> again, my dad's house is on the same estate and that does have a hot tank, 
> so...

I suspect it originally had hot and cold tanks, then they changed it to an 
on-demand boiler (common when a boiler gets replaced) but left the cold tank 
(probably didn't want to re-plumb all the upstairs taps).

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Am 07.07.2010 17:59, schrieb Invisible:
> Why has nobody yet invented a car door which can be opened half way?
>
> Every car I've ever seen has hinges which try to force the door fully
> open or fully closed. Now you can see why fully closed would be a good
> idea. But if you're parked in a tight space, it's really irritating that
> you can't let go of the door because you'll either get a door in your
> face, or the door will spring open and scratch up the car next to you.
>
> Such a simple problem, yet nobody has solved it. WHY?!! >_<

Because you're once again wrong?

I recall indeed having operated car doors that had two distinctive 
"open" positions. Never paid much attention to this though, so I can't 
tell what percentage of cars seem to have such a feature.

> Why are the downstairs taps connected to the mains, but the upstairs
> ones connected to a tank? Why do we even *have* a tank??

Maybe because upstairs the water mains pressure drops below atmospheric 
pressure (or at least too low to provide any significant throughput) at 
peak load times?

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On 7/8/2010 1:54 AM, scott wrote:

>
> It's different in the UK, the mains pressure usually equates to about
> 10-50 metres plus of head. Any water from a tank in the roof is usually
> *way* lower pressure than mains. For example you can easily block off a
> fully open hot tap with your thumb with very little force, but it is
> tricky, if not impossible to do the same on a mains pressure cold tap.
>

Is this everywhere, though? I imagine in Andrew's Building's case that 
it could be that his building was on a hill, while the building gets 
reasonable pressure on the lower floor, the upper floor might not get 
enough. Where I live, there's plenty of water pressure. But, if your 
building is taller than the water tower, it'll need a tank to get 
pressure to the upper floors.

-- 
~Mike

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