See todays RNS.

Gianni
Someone has set up a site that covers a number of the FAQs on PDX,
May answer some of your questions but remember it is promoting the Bull case for PDX so should be read in that light.
http://www.debauched.homechoice.co.uk/pdx/index.html
Regards
M

Martini - thanks just read thru it and though my specifics weren't answered fully there I thought the site was very fair though the financials were slightly bullish =:0

I actually noticed there were a couple of sensible negatives posted by some experts in waste water and steam generation so consider the site to be a good one for PDX investors/potential investors to look at. I think of particular interest was PDX's own technical officer who states:-

"Commercially available methods employed for the generation of steam have not significantly changed in over 50 years. Conventionally, steam is used to produce rotational power via either turbines or reciprocating engines, which utilise the expansion energy available as steam pressure reduces. They also require high quality steam to avoid damage to turbines or piston seals from condensation or solid particle entrained in the flow.

The PDX system utilises both the expansion energy available and the 'implosion' energy as the steam condenses to a fraction of its volume in the fluid being pumped. The steam is introduced into the fluid flow through a jet arrangement that is tolerant to variable steam quality and any fine detritus carried with the steam (such as un-dissolved solids, rust particles etc.)

Conventional steam generators follow two routes: A boiler system; or an OTSG (Once Through Steam Generator).

1. The boiler principle: a heated tank of water with steam drawn off the top. These are slow to raise steam as a large quantity of water has to be heated, and salts and minerals contained in the water drop out or adhere to the sides or heating source deteriorating performance.

2. OTSG use a continuous single coil that water flows through, picking up heat and turning into steam. These are smaller, significantly faster at producing steam, but still need good water preparation to prevent corrosion or undissolved solids from being passed that would damage conventional equipment.

By incorporating modern materials and eliminating the need for water preparation in a development of the OTSG principle, a fast acting, very compact, Outboard-equivalent configuration for small vessel applications can be produced."

Unfortunately this raised another query for me - Doesn't the above mean that for the pump to be successful it needs to also form part of the steam generation process itself i.e. the pump is part of the entire system and not independent of it?

Gianni - not sure if you picked this up on your browse through any PDX material, but the steam pressure required is very low about 2bar, I am not a tech expertise but some domestic Cappucino makers generate about 16 bar + just to froth the milk.

Gentlemen and of Course Lady investors, -- What a lot of steam on all these PDX threads, but to what avail ? whatever view you have and whichever position you hold Long or short, the overall winner has been the MM. He will run you ragged at will -- Long or short in the absence of any news and at will. I would hope that on so little volume and the relatively small number of trades, this would not be possible. But it is at the moment, maybe the increase in SETS trading in NOV. May make transctions more transparent for those equities.

Please dont lets debate that as well.

BUT why not whichever side you are on stop posting until this weekend on all the PDX threads on Moneyam and the other side. Let the markets and the mm's take their course--- otherwise whether LOng or Short you are playing to their Gallery. They love it and will walk all of you up and down at will.
You at the moment are the total losers.

looks like a good week coming up for pdx

Why?

(I am long)

Shahidali,

Likewise, i'm long too!

Joking aside I was minded to look at this one because of the banter over at the Plaice with AJ (and Gausies Pilchard thread)

This IS a serious comment and no wind up but if if you look at this share from a TA view it is beginning to look a bit windy. If I had been fortunate enough to be long from 20/30p or so when it was first seriously promoted I would be selling now on the view it is never wrong to take a 4 bagger profit.

Just a view dyor etc

so short it Paul

Think there is a difference between identifying a potential short and taking profits on a long Gausie. I would not short this stock as there is a risk (on the short side) of positive developements, yet if I was long from an entry at low levels I would now be looking to lock in profits on at least some of my holdings.

PS I do not wind people up on stock or trend threads (smile) unlike some we both know

Paul,

Why would you "take profits" if you believe the price will go higher?

You do seem to be on a mission with your mentor to wind people up, and if you want to learn more about PDX, and the processing unit's capabilities, I suggest you ask him! (Not that he knows, but you seem to think he's the only one that understands PDX!)

I agree with gausie, go short it Paul, you know it's going down, because Ash said so! (smile)

Andy - Ashley is not my mentor, indeed he can be an unusual indeed difficult chap as his posting last evening on Sardines demonstates (Sardine moving to fee paying).

I merely comment that having taken a brief interest in pdx I would be taking or locking in some profits now had I been fortune enough to have got in @ 20p ish.

Andy,Gausie et al,

Not trying to wind anyone up but I did ask some questions earlier in this thread but didn't get any real answers. For example the steam pressure production unit and associated safety features required to move sewage or an outboard drive system might be a tad more sophisticated/expensive to run than that required to froth a cup of coffee.

If I invest in a Company that has a new mousetrap then I like to make sure it is a better one and not a "good idea".

Anyone care to try and answer some of my questions and give me a reason to invest. Oh BTW I think AJ is a first class pr*tt and have no axe to grind - genuine interest.

TIA

Gianni,

That's a good question, and the answer is that the PDX processing unit will work with any type of steam generation unit, and it can work at some distance from the actual steam generator.

At the presentation I attended, they explained, (if I remember correctly), that there are different types (qualities) of steam, and the PDX would work with any of them, and distance from the generator (pressure loss) wasn't a problem.

If that is wrong, I welcome a correction from anyone, that was my understanding.

Steam generation is already widely used in industry, so steam is readily available in many of the locations where the PDX may function.

When you refer to the marine drive, I did see the outboard motor, and there was a steam generation unit aboard the boat. They did say that seawater can be used, and the presence of salt is not a problem. I believe they are currently working on a new design of steam generator for the marine drive, and that this work is going on in the background as the main drive is for food processing, sewage and waste water, and one or two other areas.

Sorry but i'm not a techie, so just a layman's understanding of what was said, and I hope this answers your query.

If not, please ask again, i'm suresomeone here will have an answer, anf=d if not one of us will email PDX.


Andy.

Andy - yeh - I think I saw this being used on yesterday's scrapheap challenge - looked good :-)

Paul,

ok fine.

skinny,

Pardon?

Andy - an attempt at humour - unless you saw(or know) the program its wasted!

edit - here's a link http://www.channel4.com/science/microsites/S/scrapheap/

Andy - sorry, but as I understand it the key applications were marine - which is now delayed as the cost of installing/running a steam powered engine is higher than a propellor driven system so requires new steam engine technology. Ok so now they are looking for a quicker return from using existing plants that generate steam. If I remember right by far the largest bulk of excess steam is produced by the power generation industry not by food/drink/water treatment facilities.

As one of the main uses was in sewage works - anyone ever seen steam being produced in a water treatment works - other than from natural reaction of bacteria in waste? If it needs new plant to produce the steam then what is the back-up system if it fails? As I've said before maybe great potential at the design stage for new plants but just cannot see most Companies installing this pump in existing plants especially food/drink plants hence my belief real volume royalties are quite some way away. But I want to be convinced I am wrong - so come on guys convince me - won't post here again as I feel we are just going over the same ground.

Good luck all still holding.

Gianni

You make some excellent points and I agree with you.

Sewage works don't have steam. The bigger food companies almost certainly do have steam so not really a problem there. They wil probably have a bit of spare steam making/using capacity too. Some of the drinks companies will have steam (eg, breweries) and some won't.

Waste treatment plants don't usually need steam unless it is part of the treatment process and, if it is, this would be somewhat unusual.

The pump is a brilliant conception but its need for steam is the thing that kills it - sometimes stone dead! A budgetary requirement for new capital plant to make steam will create delays in PDX getting orders and the need for steam plant on a site which hasn't previously needed it will sometimes even prevent them from being gained in the first place.

So for trading or investment purposes, the PDX business is pretty much like any other.