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406 posts

Ultimate Geek
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Topic # 223758 16-Oct-2017 11:57
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Looking at getting a water blaster to clean exterior of my house (amongst other things), at highest point its probably between 6-7m high although I can use a small ladder to get some of the way up.


Anyone have any recommendations? Cladding is corrugated steel so if anybody has any recommendations for a particular cleaning concentrate suitable that would be great, otherwise I'm sure I can find something.


Alternatively if somebody has any other suggestions of ways I could clean exterior I'm keen to hear. Should note house is coastal.

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13238 posts

Uber Geek
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  Reply # 1884252 16-Oct-2017 12:00
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I find my bosch electric water blaster pretty useless for cleaning things more than 10cm from the tip. House, car, etc, you get a much better wash if you use a brush. 

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  Reply # 1884256 16-Oct-2017 12:09
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It is quite high, and usually at that distance from you, you will not have much control over the water blaster tip.
But try these

Seen it at Mitre10


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Ultimate Geek
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  Reply # 1884280 16-Oct-2017 12:54
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Be careful. Just had our house pressure washed pre painting preparation. It blew a lot of dirty water in through the gaps between windows and frames and made a real mess inside.



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Uber Geek
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  Reply # 1884331 16-Oct-2017 13:20
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For my Karcher, I have a non Karcher extention that reaches 2 stories up.
Not sure where you would get that now though.

As noted above, its hard to control, and hopless for any sort of grime,dirt or mold buildup.
You might be better of with a telescopic window washer brush, one that will take the soap slugs

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  Reply # 1884425 16-Oct-2017 15:14
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Get a professional in.  The softwash options work well and doesn't destroy the surfaces or coatings, and by the time you get the gear probably not a huge $$$ saving.  Depending what the problem is you could consider the 'spray and walk away' type chemicals as they do a great job with little fuss provided you are not in a huge hurry to see the final result. 

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252 posts

Ultimate Geek
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  Reply # 1884510 16-Oct-2017 18:40
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Agreed, for the time and hassle a professional with the right tools and softwash is best. 


If you "spray and walkaway" it yourself, MAKE SURE you do a small test area first!!  Most have bleach as the active ingredient, which can - well, obviously bleach things.  I stupidly used 30 seconds on my caravan over the weekend whilst wearing black jeans... needless to say the wife wasn't happy.


If you really wanna do it yourself, Karcher are the best bang for buck IMO.


Another thread here on a similar question...




406 posts

Ultimate Geek
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  Reply # 1884636 16-Oct-2017 22:06
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Thanks for replies, getting a professional in isn't practical for a couple of reasons, so I'll be doing it myself. After reading the responses and a bit more reading I think I'll not try do it with a water blaster, and will just stick with water without any extra cleaning product, something like this may be suitable?


Will review the other thread linked as I still need to buy a water blaster for other jobs around the house.

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  Reply # 1884671 16-Oct-2017 23:22
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I was also planning to get a water blaster to try and clear out my gutters.


I finally decided on this Ryobi one and/or this Karcher one. Anyone have any doubts on either one of these two blasters? The Ryobi one seemed very similar in specs to the Karcher one, for half the price.





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  Reply # 1886975 20-Oct-2017 14:35
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Sorry D.W if we hijack your thread.
But you seems to be interested in Water blaster as well.

I have at the moment, some 4 water blasters.
Started with a little Alto, and went to 2 Ryobi and now am in Kacher

From my experience, more like my folly into the world of water blaster
My suggestion is to get the biggest and baddest water blaster you can lay your hands on, or can afford.
With my "fleet" of water blaster, I could have bought a commercial unit by now.

The little ones are too slow, took forever and a day to do the job.
The mid size ones still too slow, and not strong enough.
With the slow speed, I ended running it for too long, and they cannot handle it and usually die.
Even went to those fancy rotating nozzle, which leaks and die fairly quick.

FYI I am now running a petrol driven Kacher which just about you need 2 hands to hang on to the wand.
Fantastic machine, cleans very well.
Just 2 things, have to be careful distance from the surface, and it drinks petrol like no tomorrow.

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