# Stains/Surfaces **URL:** https://pressurewashingresource.com/community/c/stains-surfaces/58.md [Latest](https://pressurewashingresource.com/community/latest.md) · [Categories](https://pressurewashingresource.com/community/categories.md) --- ## [About the Stains/Surfaces category](https://pressurewashingresource.com/community/t/about-the-stains-surfaces-category/14436)
**Author:** [@Chris](https://pressurewashingresource.com/community/u/Chris)\ **Replies:** 0
Use this category to post or find topics related to specific stains or specific surfaces that are unusual. This category helps you to answer difficult questions pertaining to common surfaces with unusual stains and/or u… --- ## [Removing oil accidentally](https://pressurewashingresource.com/community/t/removing-oil-accidentally/41156)
**Author:** [@OhioFloMo](https://pressurewashingresource.com/community/u/OhioFloMo)\ **Replies:** 7\ **Last updated:** [September 25, 2026, 12:07pm UTC](https://pressurewashingresource.com/community/t/removing-oil-accidentally/41156 "2026-09-25T12:07:21Z")
Found this out by accident, but “World’s Best Graffiti Remover” seems to work well at lifting oil stains. The science behind it makes sense since it was formulated to break the bond between concrete and paint to help lif… --- ## [Removing deep rust stains from natural stone](https://pressurewashingresource.com/community/t/removing-deep-rust-stains-from-natural-stone/40808)
**Author:** [@dylan](https://pressurewashingresource.com/community/u/dylan)\ **Replies:** 2\ **Last updated:** [May 1, 2026, 11:41am UTC](https://pressurewashingresource.com/community/t/removing-deep-rust-stains-from-natural-stone/40808 "2026-05-01T11:41:09Z")
Hey everyone, hoping to get some advice on rust stains. I’ve had success getting them out of granite in the past, but I’m struggling with some natural stone pieces where the stains seem a lot deeper. Nothing I’ve tried s… --- ## [New Construction Washing](https://pressurewashingresource.com/community/t/new-construction-washing/39329)
**Author:** [@LoganWashesStuff](https://pressurewashingresource.com/community/u/LoganWashesStuff)\ **Replies:** 7\ **Last updated:** [March 23, 2026, 2:57am UTC](https://pressurewashingresource.com/community/t/new-construction-washing/39329 "2026-03-23T02:57:00Z")
This is a new construction build that has a lot of dirt on it. I’ve never done new construction more than two or three times, but I want to get in with this builder, so I’d like to know how I can best get this cleaned. W… --- ## [Help identifying and treating this tile](https://pressurewashingresource.com/community/t/help-identifying-and-treating-this-tile/40709)
**Author:** [@JamesTown](https://pressurewashingresource.com/community/u/JamesTown)\ **Replies:** 6\ **Last updated:** [February 23, 2026, 10:24pm UTC](https://pressurewashingresource.com/community/t/help-identifying-and-treating-this-tile/40709 "2026-02-23T22:24:55Z")
hello, i did a little pressure washing at a house yesterday and used bleach and a pressure washer on it as well as acid cause it wouldnt budge with the SH but this black doesnt really come off. some of the tile chipped b… --- ## [What creates this marking?](https://pressurewashingresource.com/community/t/what-creates-this-marking/40656)
**Author:** [@JamesTown](https://pressurewashingresource.com/community/u/JamesTown)\ **Replies:** 4\ **Last updated:** [January 1, 2026, 4:49pm UTC](https://pressurewashingresource.com/community/t/what-creates-this-marking/40656 "2026-01-01T16:49:58Z")
This is from concrete in Northern California that was poured about 5 years ago. Client sent me this picture and asked if it can be removed / what it is. Does anyone have any ideas what it might be? He says they’re rando… --- ## [High spec job - chems for concrete, tiles, pavers?](https://pressurewashingresource.com/community/t/high-spec-job-chems-for-concrete-tiles-pavers/40615)
**Author:** [@lightcam](https://pressurewashingresource.com/community/u/lightcam)\ **Replies:** 1\ **Last updated:** [December 3, 2025, 8:28am UTC](https://pressurewashingresource.com/community/t/high-spec-job-chems-for-concrete-tiles-pavers/40615 "2025-12-03T08:28:59Z")
Hi there, I’m cleaning a high spec house and looking for some advice on chems (or no chems) on what looks like concrete slabs and blocks, plus pavers. The owner doesn’t know what the building materials are but I’ve reach… --- ## [Cleaning and sealing sandblasted driveway](https://pressurewashingresource.com/community/t/cleaning-and-sealing-sandblasted-driveway/40536)
**Author:** [@OhioFloMo](https://pressurewashingresource.com/community/u/OhioFloMo)\ **Replies:** 8\ **Last updated:** [October 10, 2025, 1:43pm UTC](https://pressurewashingresource.com/community/t/cleaning-and-sealing-sandblasted-driveway/40536 "2025-10-10T13:43:31Z")
Long story short, previous contractor botched the sealing job and the whole driveway needed to be fixed. GC decided it would be more cost-effective/less labor intensive to have the whole drive sandblasted to remove the s… --- ## [What chemical to use to clean this?](https://pressurewashingresource.com/community/t/what-chemical-to-use-to-clean-this/40440)
**Author:** [@symon\_say](https://pressurewashingresource.com/community/u/symon_say)\ **Replies:** 2\ **Last updated:** [August 30, 2025, 1:08am UTC](https://pressurewashingresource.com/community/t/what-chemical-to-use-to-clean-this/40440 "2025-08-30T01:08:19Z")
Hi there! I have to quote a costumer to cleand this stones, thy’re dirty from mopping the floor basically. And a big problem is the stones are next to the elevator so using a lot of water is a no go. What chemicals sho… --- ## [Black streaking on Aluminum](https://pressurewashingresource.com/community/t/black-streaking-on-aluminum/40381)
**Author:** [@dylan](https://pressurewashingresource.com/community/u/dylan)\ **Replies:** 3\ **Last updated:** [August 20, 2025, 4:51pm UTC](https://pressurewashingresource.com/community/t/black-streaking-on-aluminum/40381 "2025-08-20T16:51:38Z")
Black streaks on aluminum and ACM panels at dealership. Client asked us to remove them. Any ideas on how to tackle this? --- ## [Sealer Issue Troubleshooting](https://pressurewashingresource.com/community/t/sealer-issue-troubleshooting/39980)
**Author:** [@OhioFloMo](https://pressurewashingresource.com/community/u/OhioFloMo)\ **Replies:** 22\ **Last updated:** [August 4, 2025, 11:47pm UTC](https://pressurewashingresource.com/community/t/sealer-issue-troubleshooting/39980 "2025-08-04T23:47:27Z")
This is a first for me… My process has been consistent every time I’ve cleaned and sealed a driveway, so the list of variables is short. I’ve narrowed it down to a few possibilities: A bad batch of sealer — although I… --- ## [Redwood stains on tiles](https://pressurewashingresource.com/community/t/redwood-stains-on-tiles/40311)
**Author:** [@Seandz](https://pressurewashingresource.com/community/u/Seandz)\ **Replies:** 4\ **Last updated:** [August 2, 2025, 3:30pm UTC](https://pressurewashingresource.com/community/t/redwood-stains-on-tiles/40311 "2025-08-02T15:30:57Z")
Last year a client was having some tiles installed but they had been sitting in his yard which is basically a forest surrounded by redwood trees. I attempted to completely remove the stains left by the redwood trees so I… --- ## [Cleaning efflorescence](https://pressurewashingresource.com/community/t/cleaning-efflorescence/40154)
**Author:** [@LukePressure](https://pressurewashingresource.com/community/u/LukePressure)\ **Replies:** 3\ **Last updated:** [June 24, 2025, 11:42pm UTC](https://pressurewashingresource.com/community/t/cleaning-efflorescence/40154 "2025-06-24T23:42:55Z")
Hey there, I’ve recently started a pressure washing business and have received an inquiry about leached mortar/efflorescence on black brick. I’ve read that hydrochloric acid can clean the brick but the brick for this jo… --- ## [Is UV bleached rust stain or something else?](https://pressurewashingresource.com/community/t/is-uv-bleached-rust-stain-or-something-else/40113)
**Author:** [@BusterBlue](https://pressurewashingresource.com/community/u/BusterBlue)\ **Replies:** 2\ **Last updated:** [June 11, 2025, 3:37am UTC](https://pressurewashingresource.com/community/t/is-uv-bleached-rust-stain-or-something-else/40113 "2025-06-11T03:37:56Z")
is this a rust stain that’s just been baking in the sun for a few years or something else? The pavers are transplanted from the neighbors half of the top floor. Never seen a pink stain like this before. Thanks in adva… --- ## [Discoloration brand new concrete paver](https://pressurewashingresource.com/community/t/discoloration-brand-new-concrete-paver/40083)
**Author:** [@Seandz](https://pressurewashingresource.com/community/u/Seandz)\ **Replies:** 5\ **Last updated:** [June 7, 2025, 7:55pm UTC](https://pressurewashingresource.com/community/t/discoloration-brand-new-concrete-paver/40083 "2025-06-07T19:55:07Z")
A client just had brand new cladding installed around his pool. These are colored concrete slabs installed with grout in between them. They picked what color they like out of the catalog and after the contractor installe… --- ## [Disturbed Oxidation?](https://pressurewashingresource.com/community/t/disturbed-oxidation/39853)
**Author:** [@LoganWashesStuff](https://pressurewashingresource.com/community/u/LoganWashesStuff)\ **Replies:** 15\ **Last updated:** [April 22, 2025, 11:47am UTC](https://pressurewashingresource.com/community/t/disturbed-oxidation/39853 "2025-04-22T11:47:53Z")
Did a house wash last night. Customer sends texts this morning saying everything looks good except this one small area looks blotchy. It looks to me like I somehow disturbed the oxidation by letting the SH sit t… --- ## [Advice on how I should clean this stone entrance](https://pressurewashingresource.com/community/t/advice-on-how-i-should-clean-this-stone-entrance/39531)
**Author:** [@CancunManny](https://pressurewashingresource.com/community/u/CancunManny)\ **Replies:** 23\ **Last updated:** [February 9, 2025, 3:58am UTC](https://pressurewashingresource.com/community/t/advice-on-how-i-should-clean-this-stone-entrance/39531 "2025-02-09T03:58:12Z")
This would be my first vertical job. I am scheduled to do it on Tuesday the 4th. I would appreciate any and all tips and suggestions. Remember I am using a 4 gallon fumigator to deliver my chemicals. Do plan to take … --- ## [Epoxy Flooring "Part A" Stain on Driveway](https://pressurewashingresource.com/community/t/epoxy-flooring-part-a-stain-on-driveway/39305)
**Author:** [@OhioFloMo](https://pressurewashingresource.com/community/u/OhioFloMo)\ **Replies:** 10\ **Last updated:** [November 18, 2024, 9:42pm UTC](https://pressurewashingresource.com/community/t/epoxy-flooring-part-a-stain-on-driveway/39305 "2024-11-18T21:42:58Z")
On Wednesday morning, I received a text from an epoxy flooring company about a spill on a resident’s driveway (first photo). The spill involved “Part A” of a urethane flooring solution, though I wasn’t provided with the … --- ## [Chimney Wash](https://pressurewashingresource.com/community/t/chimney-wash/39297)
**Author:** [@LoganWashesStuff](https://pressurewashingresource.com/community/u/LoganWashesStuff)\ **Replies:** 4\ **Last updated:** [November 14, 2024, 8:44pm UTC](https://pressurewashingresource.com/community/t/chimney-wash/39297 "2024-11-14T20:44:00Z")
Customer just bought a new house and wants their chimney cleaned. Is this soot on the chimney or just heavy organics that a hot mix of SH will clean up nicely? How would you guys tackle this --- ## [Orange stains around bushes](https://pressurewashingresource.com/community/t/orange-stains-around-bushes/39007)
**Author:** [@An0nymousGh0st](https://pressurewashingresource.com/community/u/An0nymousGh0st)\ **Replies:** 5\ **Last updated:** [October 23, 2024, 2:03am UTC](https://pressurewashingresource.com/community/t/orange-stains-around-bushes/39007 "2024-10-23T02:03:36Z")
I have a customer that has limestone or sandstone paved pool deck. Large white pavers with natural shells and are smooth in places but also has natural porous areas all over them which hold green algae. They get algae a … --- ## [Paint on Hot Tub Cover](https://pressurewashingresource.com/community/t/paint-on-hot-tub-cover/39206)
**Author:** [@JAtkinson](https://pressurewashingresource.com/community/u/JAtkinson)\ **Replies:** 2\ **Last updated:** [October 16, 2024, 3:55am UTC](https://pressurewashingresource.com/community/t/paint-on-hot-tub-cover/39206 "2024-10-16T03:55:03Z")
One of the guys set this client’s hot tub steps on top of the cover, and left it when we had to come back to finish the job later… now there’s paint transfer on the vinyl(?) cover. I was figuring Goof Off, or maybe the … --- ## [Steel rusted overnight](https://pressurewashingresource.com/community/t/steel-rusted-overnight/38868)
**Author:** [@LoganWashesStuff](https://pressurewashingresource.com/community/u/LoganWashesStuff)\ **Replies:** 3\ **Last updated:** [July 31, 2024, 3:32am UTC](https://pressurewashingresource.com/community/t/steel-rusted-overnight/38868 "2024-07-31T03:32:30Z")
I bought these steel diamond plates for mounting my hose reels two nights ago, and then left them out on top of my toolbox overnight. I come back out here the next night and there’s orange everywhere, but it wipes up. Wh… --- ## [Hardie Board Household Cleaner Tests](https://pressurewashingresource.com/community/t/hardie-board-household-cleaner-tests/38771)
**Author:** [@cgmckeever](https://pressurewashingresource.com/community/u/cgmckeever)\ **Replies:** 0\ **Last updated:** [July 6, 2024, 11:28pm UTC](https://pressurewashingresource.com/community/t/hardie-board-household-cleaner-tests/38771 "2024-07-06T23:28:20Z")
Little research post my earlier Hardie cleaning ask \[1\]. I snagged a piece of Hardie and put CLRR Bathroom Cleaner, White Vinegar, and Lime Away on 3 sections and let it bake in the sun for 3 hours. After a clean, none o… --- ## [Hardie Board - White stain/build-up](https://pressurewashingresource.com/community/t/hardie-board-white-stain-build-up/38747)
**Author:** [@cgmckeever](https://pressurewashingresource.com/community/u/cgmckeever)\ **Replies:** 25\ **Last updated:** [July 2, 2024, 8:29pm UTC](https://pressurewashingresource.com/community/t/hardie-board-white-stain-build-up/38747 "2024-07-02T20:29:22Z")
Hardie Board about 5 years old. Have visited twice to power wash over this time. There is almost a thin layer of build up that wont come off. Tried light scrub with soap and a sponge/magic-eraser. Will fade/disappear for… --- ## [Streaky Awnings](https://pressurewashingresource.com/community/t/streaky-awnings/38612)
**Author:** [@JAtkinson](https://pressurewashingresource.com/community/u/JAtkinson)\ **Replies:** 7\ **Last updated:** [June 12, 2024, 12:20am UTC](https://pressurewashingresource.com/community/t/streaky-awnings/38612 "2024-06-12T00:20:59Z")
So we’ve been at these awnings a few times… The process: Trip 1: downstreamed and brushed (it did most of the job) Trip 2: 4% & brush, then Gutter Butter & brush (did a pretty good job, but still not great) Before: … --- ## [(Picture) Anyone know how to remove staining on stucco from water runoff?](https://pressurewashingresource.com/community/t/picture-anyone-know-how-to-remove-staining-on-stucco-from-water-runoff/11471)
**Author:** [@thepelican](https://pressurewashingresource.com/community/u/thepelican)\ **Replies:** 7\ **Last updated:** [May 31, 2024, 10:01pm UTC](https://pressurewashingresource.com/community/t/picture-anyone-know-how-to-remove-staining-on-stucco-from-water-runoff/11471 "2024-05-31T22:01:58Z")
I tried chlorine (obviously) and gutter grenade (which I’ve had varying results with on other, similar projects) but nothing is touching this stuff. Any ideas? --- ## [Clay on new pool deck](https://pressurewashingresource.com/community/t/clay-on-new-pool-deck/38534)
**Author:** [@JAtkinson](https://pressurewashingresource.com/community/u/JAtkinson)\ **Replies:** 8\ **Last updated:** [May 30, 2024, 5:43am UTC](https://pressurewashingresource.com/community/t/clay-on-new-pool-deck/38534 "2024-05-30T05:43:18Z")
Have a client that signed up for us to softwash and seal their new paver pool deck. When I went by to layout the plans, we found it is badly clay stained from the builder, all over the pool deck. He’s happy to pay us t… --- ## [Removing Spray Foam](https://pressurewashingresource.com/community/t/removing-spray-foam/38472)
**Author:** [@PPWofLexSC](https://pressurewashingresource.com/community/u/PPWofLexSC)\ **Replies:** 4\ **Last updated:** [May 17, 2024, 1:10am UTC](https://pressurewashingresource.com/community/t/removing-spray-foam/38472 "2024-05-17T01:10:43Z")
I was asked to quote a brick home wash in a well-to-do area that has this particular home going through some serious renovations. 1950’s brick home that has had some repair to a few sections of bricks and mortar and my j… --- ## [Copper Stain](https://pressurewashingresource.com/community/t/copper-stain/38407)
**Author:** [@Anton\_C\_K](https://pressurewashingresource.com/community/u/Anton_C_K)\ **Replies:** 1\ **Last updated:** [May 3, 2024, 1:37am UTC](https://pressurewashingresource.com/community/t/copper-stain/38407 "2024-05-03T01:37:37Z")
Is OneRestore still the go to for copper stains? The only threads I’ve read on it are from years ago. I did try Oxalic mixed 10:1 and let it dwell for a bit, maybe 30 minutes, but it seems in order to have any impact it… --- ## [Weird concrete](https://pressurewashingresource.com/community/t/weird-concrete/38307)
**Author:** [@JAtkinson](https://pressurewashingresource.com/community/u/JAtkinson)\ **Replies:** 6\ **Last updated:** [April 18, 2024, 12:31pm UTC](https://pressurewashingresource.com/community/t/weird-concrete/38307 "2024-04-18T12:31:06Z")
A couple of the guys have run into this one today… it’s not responding to any level of SH or pressure. Anyone have any clue what it is so i cn explain why it won’t come clean like the brick did? Is it maybe someth… [Next page](https://pressurewashingresource.com/community/c/stains-surfaces/58.md?page=1)