[Richy L]

Thanks! I'm happy with the set up I use for K render, I'm not planning on changing that.
It's for other avenues of work.

[chris scott]

Thx for that correction rob !!!


Don't people use the super heat on monuments and the like, or is that another system

( I know Chris would just reccomend throwing acid over them, but that don't count )

Darran

[Darranvps]

Good Morning Everyone

We have a Falch T3H - hard to get repaired (often sat in a corner of the warehouse)

We have various cold water pressure washers with Hot Boxes (hardly used anymore)

And we have two Doff Systems - expensive but service is second to none - next day for parts anywhere in the country.

9/10 jobs my lads use DOFF - simply because they clean quite quickly and if water supply is limited they don't use so much.

Rob is correct in the fact that they are low pressure and low water flow - not what we are taught when thinking about pressure washers - and I should know as I used to sell Kranzle Pressure washers in Bulgaria.

The Doff is ideal for cleaning many surfaces - without causing damage - I would recommend these to anyone - we run ours on kerosene - very cheaply! Great on K Rend or any through colour rendered surfaces.

A short video to see the doff in action on render in Brighton 
https://www.youtube.com/watch?v=iZLceafdcdc

[Rob_Mac]

Would you not prefer to have one machine that suits all applications?

Rob

[Rob_Mac]

Not one machine for all your works but if you bought three of the same one you know you could clean low flow/pressure, high volume etc?

Rob

[Matt Gibson]

I understand the technology behind the DOFF systems, low flow/pressure, superheated water. Apparently good for cleaning vegetation/algae etc..

BUT.. and its a big but.. like Chris has said, why not get a 21lpm (or something similar) and a couple of 21lpm hot boxes. OR, you would probably only need one, because you can use smaller nozzles, reduce the flow, to bring the water temp up. I only have a 15lpm boiler on my frame, and when i do gum/paint removal/graffiti removal, i use an 03 nozzle, and the water gets pretty damn hot.

You can effectively turn any machine, into something similar to the DOFF system (albeit not as well) by adjusting nozzle sizes, flow rates etc..

If you set it all up in your van the right way, you could have quite a compact system, all mounted nicely, with reels etc and you could plumb in or remove each boiler with quick releases, add more hot water when you needed it, or just run cold for driveways etc in the summer.

Whole lot would probably cost you £4000 with all the fitting and hose reels and then your time on top fitting it in the van.

I have 21lpm, with a 15lpm boiler, and i have never not been able to clean something. Though its handy to know that Jamie rents the thermatech systems, as im getting quite a few enquiries with access issues for stone cleaning.

[justin cooper]

Ritchy L The pictures of the render cleans on your web site look spot on mate. Can I ask you a few questions. Do you have to use chems or can you just use heat? and do you use cherry picker to apply chems and to clean or do you have other ways of applying chems?

Cheers Justin

[Richy L]

Thanks,

Some are cleaned from the ground some for a cherry picker.
Some just chemicals, some with a little pressure(just cold). ... every job is different.

[Richy L]

Has anyone heard of a thermac 17?

[trevor perry]

Has anyone heard of a thermac 17?

I think you mean a thermic 17, they are made by Lavor and we have 2. They run at 21ltrs a minute and the temperature gets very hot, we often split to run to guns on 03 nozzles for gum removal and it works great

[Matt Gibson]

The thermic 17's are expensive.

[Richy L]

Yeah they're around £11K+ new.
I have a chance to get a second hand one for around £4K+.

They have an integrated gennie don't they? for the burner.


How hot do they get Trevor?

[trevor perry]

it says on the temperature dial 140 degrees but I doubt that is correct as that would make it steam, but it does get very hot. I often have to turn the heat down as the quick connect fittings get very very hot and this soon destroys the rubber o rings in these fittings.

[Blast Away]

For £11k you could have a nice skid mount hot system shipped over from the US from the likes of Hydro Max or Dan Swede whatever company name he's going by today.

http://www.ebay.com/itm/Hot-Cold-Pressure-Washer-8-5gpm-3600psi-new-26-1HP-Liquid-Cooled-Diesel-/271045800729?pt=LH_DefaultDomain_0&hash=item3f1b96b319

http://www.ebay.com/itm/8012PRO-35KLDG-3500-PSI-8-GPM-GDiesel-Hot-Water-Super-Skid-Pressure-Washe-/280898104145?pt=LH_DefaultDomain_0&hash=item4166d4eb51

I wouldn't touch that Falch on ebay for £7.5k. Looks like it's a big headache. He's been trying to sell it for over a year. The images are from that time too so it's been rotting away. The same firm sold me one for £5k, it didn't had a alternator generator on and fitted one ourselves, full service and run mint. Still does now after several services and even ended up mounted on it's original axle/chassis.