"box" wrote in message
...
'David Hare-Scott[_2_ Wrote:
;820408']"box" wrote in message
...-
Hi folks, I'm a university student doing some research, hopefully
some
of you can help!
I'm simply intrested in the gardener's opinion of a pressurised water
butt?-
Daft. Why would you go to the trouble for (at most) a few hundred
litres of
water? Gravity feed is the simple solution for such a piffling
amount.
-
The idea is that any collected water could easily be put under
pressure,
allowing use with a hose, much like the output from a garden
tap.-
Easily? How on earth are going to have a water butt that is filled
from
some natural source (like roof runoff) that is at the same time
presurised?
Oh I see it's not available to be filled and pressurised at the same
time.
You switch modes when you want to use it. And this is going to hold
pressure and be simple and cheap? How will it be powered, hand
cranked?
What about the excessive pressure if you don't use it much? You would
need
an automatic pressure relief valve.
So next time you have visitors and they ask what is hissing in the
garden
you reply "oh that is just the relief valve on my butt"
David
It's a design project, so the whole thing is open to change. The idea
was that pressure is only applied when you'd want to use it with a
sprinkler or hose, it would be relieved for filling. And no, it
wouldn't be hand cranked.
So you will run electricity to it to power it? How do you seal off the
inlet when you want to pressurise it? A valve? Many such containers don't
have a lid that seals or any lid at all and often the downpipe from the roof
drops water into it from a height in a fairly rough and ready way.
This is starting to get complex and expensive for enough water for a few
tubs or a tiny roof garden.
I appreciate that you may think it's daft; after all I'm on here asking
for opinion, but theres no need for the cynicism...
Don't take it personally, it wasn't intended that way, I just lack control
when the possibility of a silly pun comes my way. I would think that a
design report that says an idea is not cost-effective is just as useful (or
more) than one that has to jump through hoops to make it work.
David