[Nameless Drudge]

I wondered if anyone on here has considered making there own.I have managed to see one picture of a unit which is this below,


http://www.stonehealth.com/uncategorised/a-successful-trial-with-a-doff-in-an-unusual-setting/

It seems to be a revered system but I know nothing about them.Surely it can`t be actually magic !

Am looking for any helpful info at all,regards.

[Matt Gibson]

Its an electric pressure washer. Low psi/flow and high heat. Chris will be along shortly to tell you what you need to make one. The problem lies in the hoses/fittings/o ring etc that go along with using 150 - 160 degree heat/steam

[Nameless Drudge]

 15-17 secs of this video shows the  red doff parked next to a petrol washer.

 http://www.youtube.com/watch?v=4CIpykKHWqo&feature=youtu.be

I read on the stonehealth site that servicing includes a new ceramic nozzle and safety valve. I dont fancy standing next to a diy one if it goes pop!

How much are they? My hunch  for a full set up is £6k plus and that it might be possible to assemble something equal at £3k using new.

[Blast Away]

Glorified hotbox.

Stonehealth dress it up like it will pull carbon out of stone and off accy brick

[Matt Gibson]

Glorified hotbox.

Stonehealth dress it up like it will pull carbon out of stone and off accy brick

As much as i think stonehealth talk it up, its the TORC system that they say will remove carbon. The DOFF is used for vegetation etc..

[Kenny83]

used to be a kranzle k7/120 run through a 21 litre hotbox to get 150 degrees steam but now I think they use what looks like an interpump. they are very sneaky by selling a machine for 6K that can be built by anyone and never taking full on pictures so no one can see what pump it is 

[chris scott]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

[Nameless Drudge]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

A Honda GX160 5.5HP,Interpump AT 11 L/MIN might suffice then,150 bar though.Turn it down a little I guess.This is coupling it with a 21 litre hot box.

Reason for wanting it-  Monocouche render,large appt block,,no chems,nasty staining from individual appts run off from balcony decking and metalwork and black staining coming down from roof line which I think is some sort of oxidation run off. I can`t offer clean and repaint so looking for the clean to excel.

[Blast Away]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

A Honda GX160 5.5HP,Interpump AT 11 L/MIN might suffice then,150 bar though.Turn it down a little I guess.This is coupling it with a 21 litre hot box.

Reason for wanting it-  Monocouche render,large appt block,,no chems,nasty staining from individual appts run off from balcony decking and metalwork and black staining coming down from roof line which I think is some sort of oxidation run off. I can`t offer clean and repaint so looking for the clean to excel.

I've got both for sale.

[chris scott]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

A Honda GX160 5.5HP,Interpump AT 11 L/MIN might suffice then,150 bar though.Turn it down a little I guess.This is coupling it with a 21 litre hot box.

Reason for wanting it-  Monocouche render,large appt block,,no chems,nasty staining from individual appts run off from balcony decking and metalwork and black staining coming down from roof line which I think is some sort of oxidation run off. I can`t offer clean and repaint so looking for the clean to excel.

Do a test first...I think you will struggle even with steam. Do you have pictures?

[chris scott]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

A Honda GX160 5.5HP,Interpump AT 11 L/MIN might suffice then,150 bar though.Turn it down a little I guess.This is coupling it with a 21 litre hot box.

Reason for wanting it-  Monocouche render,large appt block,,no chems,nasty staining from individual appts run off from balcony decking and metalwork and black staining coming down from roof line which I think is some sort of oxidation run off. I can`t offer clean and repaint so looking for the clean to excel.

I've got both for sale.

My one?

[Nameless Drudge]

Its this one. 


http://www.cleanitup.co.uk/smf/index.php?topic=170148.msg1436288#msg1436288

[Nameless Drudge]

The very first picture top left is ground level,i scrubbed it with a high alkaline general cleaner and didn't make any impression at all.

[Blast Away]

- Interpump 44 Series Triplex Pump - about 10 LPM - 100 Bar - 28mm F Shaft

What do you want one (a Doff) for?

A Honda GX160 5.5HP,Interpump AT 11 L/MIN might suffice then,150 bar though.Turn it down a little I guess.This is coupling it with a 21 litre hot box.

Reason for wanting it-  Monocouche render,large appt block,,no chems,nasty staining from individual appts run off from balcony decking and metalwork and black staining coming down from roof line which I think is some sort of oxidation run off. I can`t offer clean and repaint so looking for the clean to excel.

Done a few of these pal and not mastered them. If our client wanted to proceed into complete removal I'd have given them more attention but they were happy. I was also thinking along the line of an oxidisation, preferably from the galvanised steel. We tried Oxalic, no change.

[chris scott]

The black streaks are  fungus thought to be a form of  Cladosporium spp or Alternaria spp ...a mold .
Only chemical cleaning will remove it.  As it "stains" the surface

They are not a "metallic run off, either from bolts or framework"!! The roof copings look like stone .
The walk ways/patio's and  their fitting and fixtures are galvanised and stainless steel  


"match up the paint colour and go in with the offer to repaint specific areas" Do not get involved in that.

Referring to this http://www.cleanitup.co.uk/smf/index.php?topic=170148.msg1436288#msg1436288