Surface cleaner leaving weird marks?

Hello Gents…and Ladies! I hope everyone’s season is going well. I haven’t posted in a long time, however I am an avid reader of this forum, love it.

I have searched around the forum to see if anyone had similar problems/solutions that I am having with my service cleaner but could not find any similar to my case.

I have a 30" Steel Eagle (One spray bar) with 15045 tips. I am using a 8gpm hot water unit with it. The sc is leaving weird marks. They definitely are not zebra marks. However, I did slow down the pace of the cleaning to a crawl and still had the same results. Here is a picture of what is going on.

Also, the spray bars seem to be moving normally and I have checked the nozzles and there are no clogs.

Any help would be greatly appreciated, and thanks in advance!

Danny
Perfect Shine Exteriors

It looks to me like your going to fast.

Hi Danny I haven’t been in the industry for as long as some of the guys here, I was having the same
Issue with my surface cleaner too. I have a 20 Northstar Surface cleaner and using an 8GPM @3500 PSI. I changed the original tips that came with the surface cleaner an it seems to have worked well. I don’t have a hot water unit though, your issue might have something to do with the nozzle tips of your SC. Good luck

Zebra striping… Definitely have to play with the nozzles sizes, try 15* and 25* go a size up and smaller. some concrete it will just happen! If you feel your walking to slow it may be too big of an office

Slow down and pre and post treat with house wash.

That should help.

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This stuff happens to me all the time. Drives me nuts. But i have noticed that once it dries you cant see it any more. Then if you wet it or it rains it appears again. I throw house wash, no difference, go super slow, no difference. I just tell the client it will go away after it dries. Havent had an issue so far. Its what somone here or in the window forum said ‘‘its all about setting expectations with you client’’.

If anyone does have a solution id be glad to hear it.

Swirl marks mean slow down. Whiter paths are from overlap. Overlap areas are cleaner. Post treat. Soaks in. Cleans deeper. Now you a pro.

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Try cross way, Horizontal is less noticeable, also, If its still apparent you can go vertical then tell the customer you can play checkers or tic tac doe :slight_smile:

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Yep…that’ll work.:astonished: