[Tfug] *Way* OT... :>

[euvitudo]

On Mon, Jul 7, 2008 at 3:12 PM, Bexley Hall <bexley401 at yahoo.com> wrote:
...
>> Here's an example (ascii-art):
>>      hhhhhhhh
>> /-----h----\ h
>> |     h    | h
>> |     h    | h
>> |     h    | h     hhhhh <----
>> |wwwwwhwwww| h     h   h
>> |     h    | h     h   h
>> |     h    | hhhhhhh   h
>> \----------/           hhhhhhhh
>>
>
> OK, that imagery fits my memory, but...
>
...
>>
>> You want the part of the hose (the arrow) at the desired
>> water height..  Thence, if the water level goes above
>> that, it will drain.  If the water is lower (shown), it
>> will
>> stop.  I think this is what you were looking for.
>
> (sigh)  Forgive me for trying to *think* this through
> (instead of just TRYING IT!)  :-(

Yeah, trying it will help.

>
> But, doesn't the water have to get *above* the "first peak"
> for it to start flowing?  Or, is there some other trick??

OK, so you would have to manually start it the first time.
Once it has started, move the lower loop above the water
level in the barrel.  The flow will stop.  Then move the
loop below the water level in the barrel.  It will start back up.

One way to start the flow without the risk of filling your mouth
full of rainwater is to fill the part of the hose that will be inside
the barrel.  Then lift it until the water starts flowing.  Do this
repeatedly until water flows freely.  (It's like filling a cup
sideways underwater.)


> I.e., if I took an *empty* barrel and fabricated some
> tubing in the shape indicated and let it sit in the rain,
> would it prime itself *before* the barrel overflowed?
> Or, does it rely on that to get it started?

As stated above, you'll need to start the flow.  Once the
desired water level is reached, you can move the lower
loop until it stops, and keep it there (attached to the side,
or however you're going to do it).  Once the barrel fills
past the height of the loop, water will flow (until the level
in the barrel decreases back below the loop).


>> The idea is that the hose won't drain when the weight
>> of the water can't push past the lower loop (i.e., when
>> the water level is below that lower loop.
>>
>> So, in the end, you could simply use a common
>> garden hose for this.
>>
>> Hope that makes sense.
>
> <frown>  Sorry, I'm still missing something.
>
> Crap.  Who's got a time machine when you really *need* one??

So, when you go home tonight, just try it.  Otherwise, I
can produce a video tonight (need to clean one of my
aquaria) and send a link along.

Phil