Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: tom20001 on July 29, 2023, 11:03:18 am
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(http://www.cleanitup.co.uk/smf/1690624964_Screenshot_20230729_110226_Gallery.jpg)
Did anybody ever get a finish like that which wasn't a fault of fsc?
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Are you asking if this is normal finish when using a FSC? pretty much yes, if you work with a turbo nozzle alongside the FLC you'll be stripe free at end of job. FSC helps contain the mess and covers area on larger drives etc but turbo nozzle should be used alongside FSC as and when you need it.
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No Simon these patterns seem to be in concrete. There was a layer of algae which we clean but the below wouldn't change even with turbo nozzle. We don't other parts of this same building before and after and they were all fine. Its like it's in the concrete aggregate
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No never get that using a fsc think you need to overlap. Your passes looks like you are missing bits
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No never get that using a fsc think you need to overlap. Your passes looks like you are missing bits
That's what I'm saying. The marks wouldn't come off even with turbo nozzle. Then we done loads of other paths on premises and they are all perfect as normal. So if it was problem with fsc then other paths before and after wouldnt be right surely. And it would lift with turbo also. So im confused tbh! But these 2 areas for whatever reason came up like that under the original film of algae
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And also when cleaning was done we took our time and obviously went back over when it dried out but same thing. Been using an fsc for a long time but never seen anything like that
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You need to move the FSC in a figure of 8 as you move forward. That will eliminate this effect. It’s a slightly awkward procedure but you’ll get the hang of it.
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(http://www.cleanitup.co.uk/smf/1690637281_Screenshot_20230729_142717_Gallery.jpg)
Like we done these after and all perfect. I get that it looks like we missed spots as patterns look exactly like that or didn't overlap with fsc but that wasn't case tbh. Like I'm even doubting myself now looking at photos again but when turbo doesn't remove it?
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That's a before pic btw 😜
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Does applying a hypo mix get rid of it ? Is it algae in or under the surface we always hypo first then pw I know others do it the other way round but in 25 years of pw never seen that before
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I think most have covered the question - poor application of the FSC - its on concrete - and relatively new at that - you may have driven some of the grime into the surface making it difficult to remove - a strong hypo solution - agitated then turbo'd id your best option - if the pattern is still there then plead to the client the marks must have been there bofore and you've now highlighted the issue
Darran
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I done hypo test patch so will have a look Monday. As for driving stuff into concrete that just doesn't stack up. I'm almost certain it's in the concrete aggregate! It's on 2 parts which add up to about 200m2 which is about 5% of total area pressure washed as everywhere else is perfect some of which was done before this area and some after all with fsc. Where it is is all in 2 continuous areas
So I'm bit bemused. Could partially block nozzle cause something like that?
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Will redo area Monday and see !
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I done hypo test patch so will have a look Monday. As for driving stuff into concrete that just doesn't stack up. I'm almost certain it's in the concrete aggregate! It's on 2 parts which add up to about 200m2 which is about 5% of total area pressure washed as everywhere else is perfect some of which was done before this area and some after all with fsc. Where it is is all in 2 continuous areas
So I'm bit bemused. Could partially block nozzle cause something like that?
Yes a blocked nozzle could cause that but usually it gives lines in a circle
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I done hypo test patch so will have a look Monday. As for driving stuff into concrete that just doesn't stack up. I'm almost certain it's in the concrete aggregate! It's on 2 parts which add up to about 200m2 which is about 5% of total area pressure washed as everywhere else is perfect some of which was done before this area and some after all with fsc. Where it is is all in 2 continuous areas
So I'm bit bemused. Could partially block nozzle cause something like that?
Yes a blocked nozzle could cause that but usually it gives lines in a circle
Cheers Splash. Only thing is all concrete done after that is fine. Another x3 the area I'd say of the area marked , concrete done before it all fine too. All done on same day. May get Jessica fletcher on case as it has me puzzled!
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Thanks for input lads! I don't do stress much really but this one has got me bit annoyed
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If you've done a hypo test you would know the result in 10 minutes - if the lines are still there then there a fault in the surface
mind you if your in doubt - as its concrete I would also test with brick acid - if the stain is not organic based 1000 ptrs of hypo will have no effect
Darran
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If you've done a hypo test you would know the result in 10 minutes - if the lines are still there then there a fault in the surface
mind you if your in doubt - as its concrete I would also test with brick acid - if the stain is not organic based 1000 ptrs of hypo will have no effect
Darran
Thanks Darran. I actually didn't get finished til up 7pm Friday evening and never went back to check it at that stage. I threw on concentrate hypo to be sure but as it was wet hard to see whether staining was gone. Actually can't wait til tomorrow morning to get back there! That's a bad way to be of a sunday
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I cleaned a job only once this happened and I hyped then rinsed looked perfect
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Update....?
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Darran I think the fsc is leaving a mark on the concrete, not in all places but in some. I hypoed it and rewashed twice and its fine now in most places. Any ideas why fsc would do this? Lot of different lads have been on the machine last few weeks. Could damaged t bar or something else cause it. The nozzles are old but not blocked.
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If the nozzles are old - they could be worn - be worth putting in a new set. - you can check the angle they are set at.
bent bar unlikely - you would feel it (like a bad tyre on a car) and would be consistent whoever was operating the FSC
it could just be the operator rushing in these areas - as simple as that
Darran
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It's not rushing anyway Darran as mark in concrete and turbo won't even change that. There is no markings on nozzles what size of nozzles are optimum for fsc?
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you mean the marks are left physically by the FSC ? - you never noticed it scraping the concrete at 800 RPM?
again I would say that would be a constant mark all over - not here and there
Darran
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Thought you said that stuff cleaned before and after that section was ok ? I agree with Darren I would replace the jets to be on the safe side make sure they are the correct ones for your pw output , it’s a very cheap try and hopefully will fix the issue
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(http://www.cleanitup.co.uk/smf/1690898334_Screenshot_20230801_145445_Gallery.jpg)(http://www.cleanitup.co.uk/smf/1690898396_Screenshot_20230801_145439_Gallery.jpg)
Now both those sections are side by side done 30 mins ago.
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Thought you said that stuff cleaned before and after that section was ok ? I agree with Darren I would replace the jets to be on the safe side make sure they are the correct ones for your pw output , it’s a very cheap try and hopefully will fix the issue
It was Splash. Just washed a section with turbo only now and going to go back over little bit with fsc to see if any discrepancies
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Thought you said that stuff cleaned before and after that section was ok ? I agree with Darren I would replace the jets to be on the safe side make sure they are the correct ones for your pw output , it’s a very cheap try and hopefully will fix the issue
It was Splash. Just washed a section with turbo only now and going to go back over little bit with fsc to see if any discrepancies
They look like different mixes of cement by the colour, it’s always difficult to tell from pictures but it does look like organic staining , keep us informed how it goes . Never had this happen.
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Will be back there Thursday. Its definitely not organic and my fsc doesn't seem to be marking it either after testing it this eve. Then to add insult to injury fsc would not run properly before we finished prob half power ,whereas lance same pressure as normal. Nozzles not blocked what could be cause of that? Never get any hassle had enough last few days to last 6 months
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Thought you said that stuff cleaned before and after that section was ok ? I agree with Darren I would replace the jets to be on the safe side make sure they are the correct ones for your pw output , it’s a very cheap try and hopefully will fix the issue
It was Splash. Just washed a section with turbo only now and going to go back over little bit with fsc to see if any discrepancies
They look like different mixes of cement by the colour, it’s always difficult to tell from pictures but it does look like organic staining , keep us informed how it goes . Never had this happen.
Definitely completely different mixes in places.
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Will be back there Thursday. Its definitely not organic and my fsc doesn't seem to be marking it either after testing it this eve. Then to add insult to injury fsc would not run properly before we finished prob half power ,whereas lance same pressure as normal. Nozzles not blocked what could be cause of that? Never get any hassle had enough last few days to last 6 months
Have you greased the head recently? If the grease goes hard it will slow it down if that’s the case clean it out with wd40 then re grease pushing all the dirt out of the head and bearings it should then work as new , we do this with ours every couple of months
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Will be back there Thursday. Its definitely not organic and my fsc doesn't seem to be marking it either after testing it this eve. Then to add insult to injury fsc would not run properly before we finished prob half power ,whereas lance same pressure as normal. Nozzles not blocked what could be cause of that? Never get any hassle had enough last few days to last 6 months
Have you greased the head recently? If the grease goes hard it will slow it down if that’s the case clean it out with wd40 then re grease pushing all the dirt out of the head and bearings it should then work as new , we do this with ours every couple of months
Thanks Splash I greased it yesterday but not this morning. I'll do that. Thanks for that, I appreciate it