# Concrete Damage **URL:** \ **Category:** Residential\ **Created:** [January 18, 2019, 11:27pm UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242 "2019-01-18T23:27:22Z")\ **Posts on this page:** 20\ **Page:** 3
**Author:** ![NateMiller\_ga](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/n/fbc32d/32.png) [@NateMiller\_ga](https://pressurewashingresource.com/community/u/NateMiller_ga)\ **Post date:** [November 27, 2020, 8:20pm UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/41 "2020-11-27T20:20:46Z")
Thanks @mikehallyall this clears it up for me ---
**Author:** ![B16bri](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/b/f17d59/32.png) [@B16bri](https://pressurewashingresource.com/community/u/B16bri)\ **Post date:** [November 28, 2020, 12:35am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/42 "2020-11-28T00:35:22Z")
So for the new guys like me who have never worked with concrete, how do you avoid this? Obviously only wash it if it’s 2 years or older but as discussed earlier in this thread all concrete with this type of picture frame finish is susceptible to this happening. If you turn down all work with this type of finish I’m sure your going to be leaving a lot of money on the table. So besides washing only 2 years and older concrete, making sure your pressure is around 2000 psi max what else can you do to prevent damages like this? ---
**Author:** ![AUSSIE](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/aussie/32/14864_2.png) [@AUSSIE](https://pressurewashingresource.com/community/u/AUSSIE)\ **Post date:** [November 28, 2020, 12:41am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/43 "2020-11-28T00:41:50Z")
If I can scratch the surface of the broom finished concrete with my fingernail then I don’t put my SC on it. ---
**Author:** ![B16bri](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/b/f17d59/32.png) [@B16bri](https://pressurewashingresource.com/community/u/B16bri)\ **Post date:** [November 28, 2020, 12:43am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/44 "2020-11-28T00:43:54Z")
Do you do anything like use chemicals or do you just walk away ---
**Author:** ![Clean\_Blue](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/clean_blue/32/8971_2.png) [@Clean\_Blue](https://pressurewashingresource.com/community/u/Clean_Blue)\ **Post date:** [November 28, 2020, 1:12am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/45 "2020-11-28T01:12:00Z")
If there is any question about weather or not to do a job always error on walk away. My opinion only. ---
**Author:** ![B16bri](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/b/f17d59/32.png) [@B16bri](https://pressurewashingresource.com/community/u/B16bri)\ **Post date:** [November 28, 2020, 2:16am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/46 "2020-11-28T02:16:17Z")
Agreed but how do you know? What can / should you look for? You go to a job they say the concrete is 5 years old everything looks ok and than damage happens because the cream layer was soft bc of the picture frame finish, or just poor quality or poor workmanship. What can you look for to protect your self ? ---
**Author:** ![TexasPressureWashing](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/texaspressurewashing/32/27941_2.png) [@TexasPressureWashing](https://pressurewashingresource.com/community/u/TexasPressureWashing)\ **Post date:** [November 28, 2020, 2:20am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/47 "2020-11-28T02:20:41Z")
Learn to spot new concrete visually. Ask the owner when it was poured. They might now know but might say “I’ve lived here for x years”. Buy tips to lower your pressure if you’re super concerned. Use a chemical wash only 3-4%. ---
**Author:** ![MuscleMyHustle](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/musclemyhustle/32/25298_2.png) [@MuscleMyHustle](https://pressurewashingresource.com/community/u/MuscleMyHustle)\ **Post date:** [November 28, 2020, 3:01am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/48 "2020-11-28T03:01:49Z")
> [@B16bri](#): > > Agreed but how do you know? You don’t know. Time teaches you what’s new and what’s old and what cleaning method is used the more you do it. Some things you can’t learn on a forum. ---
**Author:** ![FatFIRE](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/f/e9c0ed/32.png) [@FatFIRE](https://pressurewashingresource.com/community/u/FatFIRE)\ **Post date:** [November 28, 2020, 3:23am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/49 "2020-11-28T03:23:33Z")
Why wouldn’t we have a waiver for this then? I’ve read elsewhere on here that sc removes some concrete everytime its done, so is that true? If so, it only makes sense to have a waiver as someone isn’t going be happy when the aggregate inevitably shows. ---
**Author:** ![MrSparkleVA](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/mrsparkleva/32/13908_2.png) [@MrSparkleVA](https://pressurewashingresource.com/community/u/MrSparkleVA)\ **Post date:** [November 28, 2020, 3:28am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/50 "2020-11-28T03:28:52Z")
> [@B16bri](#): > > So for the new guys like me who have never worked with concrete, how do you avoid this? Just like avoiding anything else: do a small area that’s as far from traffic as possible and show it to the customer to get his or her assessment and or approval. ALSO, when a member of my crew recently marked up newish concrete with a Hammerhead, I explain to the customer that it will disappear within the next 6 months as the rain becomes the great equalizer. Next, I adjusted the tips on the SC and increased the second set of numbers by five (in this case from 25040 to 25045). Finally, I admonished that fine fellow for not keeping his focus on the concrete and his eye on the result. He should have noticed the effect _before_ our customer did. ---
**Author:** ![TexasPressureWashing](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/texaspressurewashing/32/27941_2.png) [@TexasPressureWashing](https://pressurewashingresource.com/community/u/TexasPressureWashing)\ **Post date:** [November 28, 2020, 3:54am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/51 "2020-11-28T03:54:36Z")
You told a customer rain would even out etched concrete within 6 months? ---
**Author:** ![MrSparkleVA](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/mrsparkleva/32/13908_2.png) [@MrSparkleVA](https://pressurewashingresource.com/community/u/MrSparkleVA)\ **Post date:** [November 28, 2020, 4:26am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/52 "2020-11-28T04:26:33Z")
Maybe not quite in 6 months, but it will. THAT, and the reemergence of the dirt and algae that evens out even the worst etching over time. An example: have you ever seen the concrete beneath the roofline where gutters are absent? ---
**Author:** ![TexasPressureWashing](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/texaspressurewashing/32/27941_2.png) [@TexasPressureWashing](https://pressurewashingresource.com/community/u/TexasPressureWashing)\ **Post date:** [November 28, 2020, 4:32am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/53 "2020-11-28T04:32:27Z")
I guess it depends on how bad the etching is. I just can’t imagine trying to explain rain will even etching out. ---
**Author:** ![MrSparkleVA](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/mrsparkleva/32/13908_2.png) [@MrSparkleVA](https://pressurewashingresource.com/community/u/MrSparkleVA)\ **Post date:** [November 28, 2020, 4:42am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/54 "2020-11-28T04:42:41Z")
It was only noticeable on the sharp turns, and he would never had seen the etchings had that sharp turn occurred anywhere else besides where he parked. ---
**Author:** ![TexasPressureWashing](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/texaspressurewashing/32/27941_2.png) [@TexasPressureWashing](https://pressurewashingresource.com/community/u/TexasPressureWashing)\ **Post date:** [November 28, 2020, 4:44am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/55 "2020-11-28T04:44:24Z")
How old was this concrete. You said newish. ---
**Author:** ![MuscleMyHustle](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/musclemyhustle/32/25298_2.png) [@MuscleMyHustle](https://pressurewashingresource.com/community/u/MuscleMyHustle)\ **Post date:** [November 28, 2020, 5:17am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/56 "2020-11-28T05:17:52Z")
Things that never change: Government incompetency. Old school Toyota reliability. Bad advice on forums. ---
**Author:** ![Racer](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/racer/32/4931_2.png) [@Racer](https://pressurewashingresource.com/community/u/Racer)\ **Post date:** [November 28, 2020, 8:13am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/57 "2020-11-28T08:13:35Z")
@NateMiller_ga Have you been drinking? After reading all your posts still don’t have a clue what you’re asking. Also, your pressure doesn’t drop from 3000 to 1500 because you’re using a 2 nozzle surface cleaner. @MuscleMyHustle - Amen ---
**Author:** ![NateMiller\_ga](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/n/fbc32d/32.png) [@NateMiller\_ga](https://pressurewashingresource.com/community/u/NateMiller_ga)\ **Post date:** [November 28, 2020, 9:02am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/58 "2020-11-28T09:02:17Z")
Well… mike had no problem “figuring” it out, and once I clear up one thing for Musclemyhustle he too understood so maybe the problem is you, racer. The tips set the pressure not the machine, if you split flow, you split your gpm ---
**Author:** ![Racer](https://pressurewashingresource.com/community/user_avatar/pressurewashingresource.com/racer/32/4931_2.png) [@Racer](https://pressurewashingresource.com/community/u/Racer)\ **Post date:** [November 28, 2020, 10:04am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/59 "2020-11-28T10:04:40Z")
> [@NateMiller\_ga](#): > > I immediately pulled my tips my pressure isn’t above 3000 at the unloader so that should give me about 1500 at either tip with 150ft hose, You said it, not me ---
**Author:** ![NateMiller\_ga](https://pressurewashingresource.com/community/letter_avatar_proxy/v4/letter/n/fbc32d/32.png) [@NateMiller\_ga](https://pressurewashingresource.com/community/u/NateMiller_ga)\ **Post date:** [November 28, 2020, 10:22am UTC](https://pressurewashingresource.com/community/t/concrete-damage/17242/60 "2020-11-28T10:22:19Z")
I guess you can chalk that upto fake news, i red that on this forum and assumed it true. [Previous page](https://pressurewashingresource.com/community/t/concrete-damage/17242.md?page=2) [Next page](https://pressurewashingresource.com/community/t/concrete-damage/17242.md?page=4)