[Tim+[_2_]]

I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.

Does anyone know of an adaptor that would let me connect some flexible pipe
(10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't found a
suitable adaptor yet.

Tim

[John Williamson]

Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.

Does anyone know of an adaptor that would let me connect some flexible pipe
(10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't found a
suitable adaptor yet.

Something like this:-

http://www.amazon.co.uk/Bulkhead-Con.../dp/B005N02ML2

Through a hole in the cap, with a couple of rubber washers to seal it?

--
Tciao for Now!

John.

[Tim+]

John Williamson wrote:
Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.

Does anyone know of an adaptor that would let me connect some
flexible pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

Something like this:-

http://www.amazon.co.uk/Bulkhead-Con.../dp/B005N02ML2

Through a hole in the cap, with a couple of rubber washers to seal it?

Nice idea but a bit too big I think. I'd prefer a readymolded device if
such a thing exists. A bit like this.
http://www.amazon.com/Soda-Carbonato.../dp/B003V5EY44

A bolt in tyre valve would fit but then I'd have to find a way of making a
water-tight seal to the tyre valve. Ideally I'd want something that I can
just push a tube onto and secure with a jubilee clip.

Tim

[[email protected]]

On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354


NT

[Steve Firth]

Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.

Does anyone know of an adaptor that would let me connect some flexible pipe
(10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't found a
suitable adaptor yet.

The usual way to do this is to fix a hose tail through the bottle cap.

For example:

http://collinsnets.co.uk/shop/hose-t...-connector-8mm

You will need to find a suitable back nut and sealing washers.

--
€¢DarWin|
_/ _/

[Tim+]

wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to act
as a pressure reservoir to prevent rapid pump cycling in a motorhome pumped
water system. The exisiting system uses a pressure switch which was okay
with the old pump but a new uprated pump is causing problems and the
recommended solution it to fit a pressure accumulator

Of course I could just spend lots of dosh and buy the recommended one but
it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7

Tim

[Tim+]

Steve Firth wrote:
Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.

Does anyone know of an adaptor that would let me connect some
flexible pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

The usual way to do this is to fix a hose tail through the bottle cap.

For example:

http://collinsnets.co.uk/shop/hose-t...-connector-8mm

You will need to find a suitable back nut and sealing washers.

Yep, that seems to be the tricky bit.

I'm leaning towards the tyre valve approach (as this chap has done).

http://www.truetex.com/carbonation.htm

http://www.truetex.com/co2a.jpg

http://www.truetex.com/co2b.jpg

Tim

[Steve Firth]

"Tim+" wrote:
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to
act as a pressure reservoir to prevent rapid pump cycling in a motorhome
pumped water system.

Have a look here - a range of horsetails and adapters.

http://www.gspen.co.uk/hose-adaptors-connectors.html

I would use a 1/4" BSP tail through the cap. A reducer or back nut on the
inside to secure it and appropriate reducers/tails to connect to your
existing.

--
€¢DarWin|
_/ _/

[Gazz]

"Tim+" wrote in message
...
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to
act as a pressure reservoir to prevent rapid pump cycling in a motorhome
pumped water system. The exisiting system uses a pressure switch which
was okay with the old pump but a new uprated pump is causing problems and
the recommended solution it to fit a pressure accumulator

Of course I could just spend lots of dosh and buy the recommended one but
it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7

Firstly, a 2 litre pop bottle is pretty flimsy, whilst it will handle the
couple of bar pressure in a motorhomes water system, can it handle the
vibrations and movement from driving down the road... basically if it fails,
you will pump the contents of the water tank into the living area,

secondly, the 'proper' accumulator has a diaphragm inside it, water on one
side, air on the other, it's the compressible air the other side of the
diaphragm that acts as the buffer,
Last one i bought for the cold side of the water system in my motorhome was
fiamma branded, and cost me about £14, looked similar to the one you showed,
but blue,

Problem with that one you linked to, they have mentioned 'boat' in the
listing, and as soon as you try and sell something to the boaty types you
double or tripple the price, and get away with it, motorhome part prices are
expensive enough, but boat parts... whilst often the exact same thing, are
just a **** take.

When i fitted the eberspacher based central heating and hot water tank, i
fitted a 7 litre hot water accumulator to the hot pipework (the 20 litre
calorifier needed it to stop the hot water being pushed back down the cold
pipework when the tank was heated)
The 7 litre expansion vessle was only 20 quid,

Not sure where you live, but have you heard of places like magnums,
O'leary's etc,
they are based in grimsby and hull, but there are a couple of similar places
down south... cant remember the names now... franks caravans is one i'm
sure,
they sell motorhome parts at more realistic prices, and sell the stuff for
home builders of motorhomes, and they also buy up last seasons stock from
manufacturers when they change things in their builds, so you can get things
a lot cheaper from them.

[The Natural Philosopher[_2_]]

On 25/04/13 12:39, Gazz wrote:


"Tim+" wrote in message
...
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354


Nice, but I think the connections would be just too small. I want it
to act as a pressure reservoir to prevent rapid pump cycling in a
motorhome pumped water system. The exisiting system uses a pressure
switch which was okay with the old pump but a new uprated pump is
causing problems and the recommended solution it to fit a pressure
accumulator

Of course I could just spend lots of dosh and buy the recommended one
but it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7


Firstly, a 2 litre pop bottle is pretty flimsy, whilst it will handle
the couple of bar pressure in a motorhomes water system, can it handle
the vibrations and movement from driving down the road... basically if
it fails, you will pump the contents of the water tank into the living
area,

well fizzy drinks bottles already take similar pressures and have screw
on caps.

Hardly rocket science to drill through the cap and mount up a gas tight
fitment to one.

--
Ineptocracy

(in-ep-toc-ra-cy) €“ a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.

[Clive George]

On 25/04/2013 12:39, Gazz wrote:

Firstly, a 2 litre pop bottle is pretty flimsy, whilst it will handle
the couple of bar pressure in a motorhomes water system, can it handle
the vibrations and movement from driving down the road... basically if
it fails, you will pump the contents of the water tank into the living
area,

2 litre PET bottles are really remarkably robust. Scratch them and
you'll be in trouble but as long as the hose connector isn't rigidly
fixed to the van so it can vibrate with the bottle it'll probably
survive quite a lot. The lid will probably fail before the bottle.

Last one i bought for the cold side of the water system in my motorhome
was fiamma branded, and cost me about £14, looked similar to the one you
showed, but blue,

OTOH for 14 quid I might well go with the proper solution :-)

[Adam Funk[_3_]]

On 2013-04-25, wrote:

On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Interesting site! I'm surprised quite a few of the things on it
aren't more expensive. I have a feeling I'll be ordering some stuff
soon.

[Tim+]

"Gazz" wrote:
"Tim+" wrote in message
...
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to
act as a pressure reservoir to prevent rapid pump cycling in a
motorhome pumped water system. The exisiting system uses a pressure
switch which was okay with the old pump but a new uprated pump is
causing problems and the recommended solution it to fit a pressure accumulator

Of course I could just spend lots of dosh and buy the recommended one
but it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7

Firstly, a 2 litre pop bottle is pretty flimsy, whilst it will handle the
couple of bar pressure in a motorhomes water system, can it handle the
vibrations and movement from driving down the road... basically if it
fails, you will pump the contents of the water tank into the living area,

Have you ever tried jumping on one? They are incredibly strong. Yes, they
can get pierced but that's easy to prevent.


secondly, the 'proper' accumulator has a diaphragm inside it, water on
one side, air on the other, it's the compressible air the other side of
the diaphragm that acts as the buffer,

I guess that the diaphragm stops the loss of the air cushion caused by the
air getting dissolved in the water but it would be easy to "recharge"
periodically.


Last one i bought for the cold side of the water system in my motorhome
was fiamma branded, and cost me about £14, looked similar to the one you showed, but blue,

Well that might be the easiest solution! Not as much fun though. ;-)

Tim

[The Natural Philosopher[_2_]]

On 25/04/13 14:10, Adam Funk wrote:
On 2013-04-25, wrote:

On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure vessel but
I haven't worked out how best to make a leakproof plumbed connection to the
bottle.

http://www.mindsetsonline.co.uk/prod...roducts_id=354
Interesting site! I'm surprised quite a few of the things on it
aren't more expensive. I have a feeling I'll be ordering some stuff
soon.
"Firefox can't find the server at www.mindsetsonline.co.uk."

sigh.. looks like my ISP is having routing issues.



--
Ineptocracy

(in-ep-toc-ra-cy) €“ a system of government where the least capable to lead are elected by the least capable of producing, and where the members of society least likely to sustain themselves or succeed, are rewarded with goods and services paid for by the confiscated wealth of a diminishing number of producers.

[[email protected]]

On Thursday, April 25, 2013 11:10:58 AM UTC+1, Tim+ wrote:
wrote:

http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small.

3x 1 litre bottles? Gas flows far better than water.


NT

[SteveW[_2_]]

On 25/04/2013 13:09, The Natural Philosopher wrote:
On 25/04/13 12:39, Gazz wrote:


"Tim+" wrote in message
...
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354


Nice, but I think the connections would be just too small. I want it
to act as a pressure reservoir to prevent rapid pump cycling in a
motorhome pumped water system. The exisiting system uses a pressure
switch which was okay with the old pump but a new uprated pump is
causing problems and the recommended solution it to fit a pressure
accumulator

Of course I could just spend lots of dosh and buy the recommended one
but it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7


Firstly, a 2 litre pop bottle is pretty flimsy, whilst it will handle
the couple of bar pressure in a motorhomes water system, can it handle
the vibrations and movement from driving down the road... basically if
it fails, you will pump the contents of the water tank into the living
area,

well fizzy drinks bottles already take similar pressures and have screw
on caps.

Hardly rocket science to drill through the cap and mount up a gas tight
fitment to one.

Indeed - one bottle with a hole drilled through the cap and a car tyre
valve pulled into it, full of compressed air; connected by a double
ended car pump hose to another bottle with a valve in the base, full of
water and a hose connected to the cap end; with a valve on the end of
the hose makes a very good water pistol, with excellent range and
continuous flow.

Not that I'm admitting to taking such devices to Run To The Sun many
moons ago!

SteveW

[David.WE.Roberts]

On Thu, 25 Apr 2013 09:19:43 +0000, Tim+ wrote:

I'd like to experiment with using a 2L coke bottle as a pressure vessel
but I haven't worked out how best to make a leakproof plumbed connection
to the bottle.

Does anyone know of an adaptor that would let me connect some flexible
pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

Tim

Might find something in the spare parts for the Zounds bike air horn.

The MK I had an aluminium bottle to hold the compressed air.
The Mk II had a plastic bottle which looks like a drinks bottle.
ISTR reading of an upgrade to a 2 litre coke bottle.
But I could be wrong.

Cheers

Dave R

[Gazz]

"David.WE.Roberts" wrote in message
...
On Thu, 25 Apr 2013 09:19:43 +0000, Tim+ wrote:

I'd like to experiment with using a 2L coke bottle as a pressure vessel
but I haven't worked out how best to make a leakproof plumbed connection
to the bottle.

Does anyone know of an adaptor that would let me connect some flexible
pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

Tim

Might find something in the spare parts for the Zounds bike air horn.

The MK I had an aluminium bottle to hold the compressed air.
The Mk II had a plastic bottle which looks like a drinks bottle.
ISTR reading of an upgrade to a 2 litre coke bottle.
But I could be wrong.

TBH if you must use a pop bottle, try to get hold of a 1.5 litre reuseable
bottle from Germany, they use the deposit system and re-use the plastic
bottles many times over there, thus the bottles are much much thicker than
the flimsy disposable ones we get over here....i still get reminded of the
time i braked hard after taking my mum shopping in her fiat panda, a bottle
of pop rolled forwards and hit the rear seat runner, which are stupidly
exposed in that car, 'ppppppiiiiiiiissssssssssshhhhhhhhhhhh' went the
contents all over the boot.

[James Richard]

replying to Tim+, James Richard wrote:
Buy them at bottlebushing.com

--
for full context, visit https://www.homeownershub.com/uk-diy...or-891567-.htm

[[email protected]]

On Friday, 30 March 2018 21:14:05 UTC+1, James Richard wrote:
replying to Tim+, James Richard wrote:
Buy them at bottlebushing.com

If he's finally decided to go ahead after a 5 year pause, and happens to still be reading here, now he can.

[harry]

On Thursday, 25 April 2013 11:10:58 UTC+1, Tim+ wrote:
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to act
as a pressure reservoir to prevent rapid pump cycling in a motorhome pumped
water system. The exisiting system uses a pressure switch which was okay
with the old pump but a new uprated pump is causing problems and the
recommended solution it to fit a pressure accumulator

Of course I could just spend lots of dosh and buy the recommended one but
it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7

Tim

A Coke bottle would only last a few cycles.
It's intended to be disposable.
You need a proper pressure vessel as supplied with electric undersink water heaters for example.

[harry]

On Thursday, 25 April 2013 22:27:37 UTC+1, David.WE.Roberts wrote:
On Thu, 25 Apr 2013 09:19:43 +0000, Tim+ wrote:

I'd like to experiment with using a 2L coke bottle as a pressure vessel
but I haven't worked out how best to make a leakproof plumbed connection
to the bottle.

Does anyone know of an adaptor that would let me connect some flexible
pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

Tim

Might find something in the spare parts for the Zounds bike air horn.

The MK I had an aluminium bottle to hold the compressed air.
The Mk II had a plastic bottle which looks like a drinks bottle.
ISTR reading of an upgrade to a 2 litre coke bottle.
But I could be wrong.

Cheers

Dave R

If any air reservoir bursts, someone could get injured.
Even a Coke bottle.

[Brian Gaff]

Yes I was just wondering what prompted this old thread to re emerge. Is
there a home owners club virus loose?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
wrote in message
...
On Friday, 30 March 2018 21:14:05 UTC+1, James Richard wrote:
replying to Tim+, James Richard wrote:
Buy them at bottlebushing.com

If he's finally decided to go ahead after a 5 year pause, and happens to
still be reading here, now he can.

[Brian Gaff]

Can you experience dejavue for the first time?
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"harry" wrote in message
...
On Thursday, 25 April 2013 11:10:58 UTC+1, Tim+ wrote:
wrote:
On Thursday, April 25, 2013 10:19:43 AM UTC+1, Tim+ wrote:
I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.


http://www.mindsetsonline.co.uk/prod...roducts_id=354

Nice, but I think the connections would be just too small. I want it to
act
as a pressure reservoir to prevent rapid pump cycling in a motorhome
pumped
water system. The exisiting system uses a pressure switch which was okay
with the old pump but a new uprated pump is causing problems and the
recommended solution it to fit a pressure accumulator

Of course I could just spend lots of dosh and buy the recommended one but
it's more fun to try and do it on the cheap. ;-)

http://www.ebay.co.uk/itm/SHURFLO-Ac...item27d2223cd7

Tim

A Coke bottle would only last a few cycles.
It's intended to be disposable.
You need a proper pressure vessel as supplied with electric undersink
water heaters for example.

[Roger Hayter[_2_]]

Brian Gaff wrote:

Can you experience dejavue for the first time?
Brian

Yes! That's exactly why it is an unpleasant symptom.

--

Roger Hayter

[David]

On Fri, 30 Mar 2018 23:48:17 -0700, harry wrote:

On Thursday, 25 April 2013 22:27:37 UTC+1, David.WE.Roberts wrote:
On Thu, 25 Apr 2013 09:19:43 +0000, Tim+ wrote:

I'd like to experiment with using a 2L coke bottle as a pressure
vessel but I haven't worked out how best to make a leakproof plumbed
connection to the bottle.

Does anyone know of an adaptor that would let me connect some
flexible pipe (10mm ID say) to the neck of the bottle?

The thread seems to be common for lots of bottles now but I haven't
found a suitable adaptor yet.

Tim

Might find something in the spare parts for the Zounds bike air horn.

The MK I had an aluminium bottle to hold the compressed air.
The Mk II had a plastic bottle which looks like a drinks bottle. ISTR
reading of an upgrade to a 2 litre coke bottle.
But I could be wrong.

Cheers

Dave R

If any air reservoir bursts, someone could get injured.
Even a Coke bottle.

School holidays again.

Since I mentioned a commercial product which is on widespread sale I must
assume that there is relatively little likelihood of injury.

Perhaps one should consider that a party balloon is an air reservoir and
is prone to rupture, especially in aid of fun using a pin. Or, for that
matter, a paper bag. For Millennials, it used to be fun to inflate a brown
paper bag by blowing through the opening, close off the opening with one
hand, and then hit the bag with the other hand. Bang! Any injuries were
generally self inflicted by using too much force. Nothing to do with
dangerous compressed air.

Ah, well.


Dave R


--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

---
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[David]

On Sat, 31 Mar 2018 09:17:12 +0100, Brian Gaff wrote:

Note that at least one posting was in April, so it is probably a "time of
year" thing.

Yes I was just wondering what prompted this old thread to re emerge. Is
there a home owners club virus loose?
Brian





--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

[Brian Gaff]

But it surely isn't if its the first time, its only the second time that it
is.
In this case twice to a thread from several years ago.
Brian

--
----- -
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...

Blind user, so no pictures please!
"Roger Hayter" wrote in message
...
Brian Gaff wrote:

Can you experience dejavue for the first time?
Brian

Yes! That's exactly why it is an unpleasant symptom.

--

Roger Hayter

[Roger Hayter[_2_]]

Brian Gaff wrote:

But it surely isn't if its the first time, its only the second time that it
is.
In this case twice to a thread from several years ago.
Brian

Deja vue (equipped with all the Usenet unfriendly accents) is used
ironically here. The whole point of the symptom is people feel sure
they have been in a situation before but in reality they haven't.

--

Roger Hayter