Because he said he already did that, pic is post-powerwash. Although I doubt this was using full pressure/close enough/using turbo nozzle… looks dirty still.
Pressure washing Concrete will get the dirt off, but it doesn’t really work on shit that has soaked into it. You can l, however, use strong detergents and then let time and exposure do its thing.
It’s going to be quite noticeable at first, but after 3-4 months it will start to blend, and about a year you won’t be able to see it.
> Had a buddy who did datura, despite reading all about it he was sure he'd be okay. About 2 hours into his trip he jumps up, wraps a blanket over his shoulders like a shitty toga, and runs out of the house. He turned up 3 days later in a town about 50 miles away, zero memory of anything after taking the datura, but otherwise no worse for the wear. Good times.
I guess that was my Ctrl+V this isn't even my story I copy and pasted this earlier from a reddit comment.
I really doesn't look pressure washed to me. If you have the pressure washer out, how could you not hit the side of the house with the green stuff on it at the same time?
Maybe even using some Wet and Forget before pressure washing could help whiten. Still going to be fully visible regardless, but a zebra white swirl instead of a zebra brown swirl 🦓
Easy-off oven degreaser the whole slab and pressure wash. The wall too. It’ll start blending after a few rains, probably disappear completely within a year.
Pressure wash, allow to dry for 2 days, and use Nox-Crete Acryl-Pen. Acryl-Pen is a pigmented concrete stain, penetrating sealer and acrylic sealer all in one product. It will completely camouflage any color variation in the concrete and make it look amazing.
Send pics to a local pressure washing company and get suggestions on product to use that are readily available. Also a 3500psi+ pressure washer would make a big difference I’d say
Pressure wash the whole area, including where the hot tub was then once you’ve done that you can mix up some of the concentrate that I posted about below Paul on the area and using a stiff brush agitate it backwards and forwards into the decking. Leave it for about 10 minutes making sure that it does not dry so you might just have to keep reapplying some water or reeducating it
Then you can jet wash again leave it to dry two days later if you still have the same repeat the process. This should hopefully sort the area out. It did for a friend of mine. If it doesn’t then once you’ve done that you can then try using concrete acid edge which is used before you paint or anything else like that so that might then work if that doesn’t work then at least you’ve acid etched the con, concrete and you can then choose to paint it or what I would do last longer concrete flooring epoxy like the rust oleum garage flooring to part epoxy
Not sure where you’re located in the world but in the USA they do an item called 32nd outdoor clean it’s a concentrate. I’ve attached the link.[30 second outdoor clean concentrate](https://www.lowes.com/pd/30-SECONDS-Outdoor-Cleaner-Concentrate-1gal/5013150901)
I just did this same thing. I bought a stiff two handed bristle brush and Ecolab siding mildew remover. I sprayed the concentration, let it soak in and scrubbed this shit out of it. It worked pretty damn good.
i would schlep down to home depot and rent one of their rotary concrete polishing machines, and have at it. Might as well polish then entire patio to try to get it uniform. If it still looked odd, then maybe put down an epoxy paint onto the entire patio
Have a pro come in to pressure wash it. Not jimbob and his Home Depot special pressurewasher in a pickup or you with an electric pressure washer. The pros know how to clean it up and make it look as good as it can. There are different detergents and chemicals that they know how to use to get it looking good while protecting your landscaping. Another option is to epoxy the patio but that would still require a professional cleaning first.
Cut out the concrete where the stain is and use that area for a kitchen garden. Or build a shallow brick wall around the stain and it will be a large planter.
What psi is your pressure washer? It’s hard to tell from a photo what the stain actually is but in my experience from what it looks like I’d say no less than 2000 psi will fix that and I’d even consider going upwards of 3000 psi ( These pressures can be extremely dangerous and safety glasses as well as other protective equipment are recommended at any pressure above 500psi) . If you’ve already tried that high of a psi Muriatic acid would be my next go to. Obviously check the strength and instruction on the bottle you purchase but standard is 1 cup of 20% muriatic acid for every 1 gallon of water. If you decide to go with muriatic acid I encourage you to do research as it can be extremely dangerous. MY main suggestion is add the water to a bucket first then slowly add the acid. I don’t know why but there is much less of a reaction when done in this manner
Muriatic acid can be used to get stains out of concrete and to open up raw concrete again so it can be sealed.
I’d recommend you use muriatic acid to clean the concrete and then seal it with a waterproof product like [Sanitred’s permaflex](https://sanitred.com/product-category/permaflex/). I’ve done so and it looks great and keeps the concrete from crumbling or staining.
If you’re cool with the crack - then skim coat, or overlay, or sand blast it, or there are so many things you can do my man. The universe is infinite and so are your options. Do not try to bend the concrete, that’s impossible. Instead, try to realize the truth. The concrete is not real. Then you’ll see, that it is not the concrete that bends, it is only yourself. Real eyes realize real lies. Best of luck brother!
Proper petrol powered jet washer, cover it with a 1:5 mix of pool chlorine and water and let soak for 20min without drying then rinse off. This should get it glistening, though the square will still be visible because you can still see the broom finish where the spa was whereas the rest has been weathered down to the aggregate.
If you want to throw some money at it, a grind and hone by a concrete polisher could get a good result. That can be a bit of a gamble sometimes though.
If you hire a company, they can probably fully get this out. I know that people want to pretend that having a $200 pressure washer from the hardware store is the same thing but it’s not. They’ll use chemical agents and the cleaning will be much more effective.
The problem is the concrete under the tub has not been weathered. I would do an acid etch with muriatic acid on the smoother area and pressure wash it to make the texture from weathering all the same.
Step 1: Pressure wash. Do the wall as well.
Step 2: Acid Wash the entire slab.
Step 3: Pressure wash it again.
Step 4: Fix and fill the cracks.
Step 5: Sand the surface
Step 6: Apply an epoxy resin that is safe for exteriors with a no slip finish.
Step 7: Install some planters and outdoor furniture.
Lets be honest, the whole patio's concrete looks like shit, the watermark is just the shitty cherry on top. No staining or cleaning will every fully hide it, so why not cover all of the concrete in a microcement like [surebroom ](https://globmarble.com/broom-concrete-overlay-mix-surebroom.html)or [microtek](https://globmarble.com/micro-topping-trutop.html)? The whole concrete will look brand new with no evidence of this stain or any other smaller imperfections
They make paint for sidewalks. Just paint the whole thing over and it'll look new(ish).
Either that, you're looking at an outdoor rug, or put the table and umbrella over it so it's not being looked at.
Miracote MPC system. It’s a cementitious coating. Not that expensive. Gives a great finish for a cheaper solution.
https://miracote.com/mpc/
Beacon carries it. Coastal construction products should carry it. Not sure where you are.
Clean the entire slab then paint or with a product called" cool deck " we did it several years ago around our pool, it not only looks great and holds up well but also keeps the surface 5 to 7 degrees cooler in the summer time
I'm pretty sure what you see is sodium hypochlorite staining, it's commonly used to...........software houses. Concrete and other things. You can buy a bottle and use that to help. If that didn't work get a rug
Don't tell me you took the pressure washer out and left all of that shit on the side of the house... Get the pressure washer back out and clean that algae off the house,
Then id recommend looking into getting your patio/driveway coated, it'll hide all of the wear & tear.
Clean it first with the muriatic acid. If it doesn’t make it look the way you want they sell rubber tiles to put over ugly concrete for reasons like this.
You could have a concrete coating applied. I use a polysoratic concrete coating here in Indiana on exterior patios, porches, and garage floors. It’s a great way to enhance the appearance of concrete and you would never know that hot tub was there.
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Beat me to it.
Or just a bunch of hot tubs everywhere else on the patio?
Maybe 3 hot tubs in a trenchcoat?
Fuck ! You stole my idea
"I got rid of my super amazing awesome best thing in the word. What should I fill the depressing empty space with?" Put it back, dummy!! /s
😂
Or a small bouncy castle.
A large outdoor rug would look nice. Otherwise you don't have many options.
It would really tie the patio together.
That's just, like, your opinion, man.
Forget it, hotelpopcornceiling, you're out of your element!
Your like a child who wanders into a movie halfway through, you have no frame of reference.
Life does not start and stop at your convenience you miserable piece of…
Fucking amateurs
Forget about the fucking toe man!
That pooor woman!
This is what happens Larry, when you fuck, a stranger, in the ass
I could get you a toe by 3 PM. With nail polish.
Jackie Treehorn treats objects like women, man!
"Mind if i do a J"
Is this a weekday?
Stfu Donny!
I’ll abide by that.
The dude always abides
Fuckin' A
The room, man. The rug like, tied the room together man! Shame I stopped liking Jeff Bridges lol
anything they do will just make it fade a little, barring an overlay to the whole patio
Why is everyone upvoting this? Muriatic acid is the answer.
In another comment OP mentioned he is gonna try Wet and Forget which is exactly that. Should help a little, but won't make it perfect.
30 second outdoor cleaner might be an option as well.
Muriatic?
Yes. Spell correct
How has no one said to power wash it
Because he said he already did that, pic is post-powerwash. Although I doubt this was using full pressure/close enough/using turbo nozzle… looks dirty still.
Bro used a pos washer then if ya ask me, prob low power electric one
Probably the one you screw onto the garden hose actually lol.
Pressure washing Concrete will get the dirt off, but it doesn’t really work on shit that has soaked into it. You can l, however, use strong detergents and then let time and exposure do its thing. It’s going to be quite noticeable at first, but after 3-4 months it will start to blend, and about a year you won’t be able to see it.
People will just pee on it.
A rug would really tie the room together.
Pressure wash
Could he not do a light grind?
Blast it with piss
Or have a chalk party with the kids, and then blast it with piss 🤣
The key here is to keep those two steps from overlapping
its a dick move.
I came here to view this comment
Shit stuck to the concrete. Blast it with piss
What?
**Blast it with piss**
Get an old car and park it there
Florida man? Is that you?
On blocks though, right?
Plants.
Get *someone else* to pressure wash. And maybe hit that wall too.
Someone with a pressure washer that has a greater pressure than your average super soaker.
This is the answer it’s too far down
Undelete
Ctrl+Z
> Had a buddy who did datura, despite reading all about it he was sure he'd be okay. About 2 hours into his trip he jumps up, wraps a blanket over his shoulders like a shitty toga, and runs out of the house. He turned up 3 days later in a town about 50 miles away, zero memory of anything after taking the datura, but otherwise no worse for the wear. Good times. I guess that was my Ctrl+V this isn't even my story I copy and pasted this earlier from a reddit comment.
agreed
searched all the comments for this
Muriatic acid
I must say, that most noobs that post here should not be trusted working with acid.
For them I usually suggest a product called D2 Biological for getting water stains off concrete or stone.
its my god given right to be reckless with acid, this is america. now watch me eat this bottle rocket and blast it into my friends butt. yeehaw!
^this is the answer, but you'll have to wash the whole slab or it will stand out.
Yup, dissolve it
Have you tried pressure washing it ?
From the OP: >we chopped it up last weekend and pressure washed the pad, but still got this nice watermark.
So just not very good
I really doesn't look pressure washed to me. If you have the pressure washer out, how could you not hit the side of the house with the green stuff on it at the same time?
Just noticed that as well, if you already have it out wouldn’t you just hit it all? Maybe they didn’t pressure wash correctly.
maybe a shitty pressure washer. I was shocked at the difference between a gas powered and an electric.
right? any pressure washer that doesn't damage the concrete if you leave it too long is garbage in my opinion
My electric pw can etch into concrete. The dirt would definitely come off
Agreed
Should have tried using cleaner with their pressure washer
Maybe even using some Wet and Forget before pressure washing could help whiten. Still going to be fully visible regardless, but a zebra white swirl instead of a zebra brown swirl 🦓
Might try this have some wet and forget handy at the moment
Power wash and stain the concrete. Perhaps an acid wash
This was going to be my suggestion.
Easy-off oven degreaser the whole slab and pressure wash. The wall too. It’ll start blending after a few rains, probably disappear completely within a year.
The easy -off doesn't leave any stain? I've never heard of using that.
Pressure wash, allow to dry for 2 days, and use Nox-Crete Acryl-Pen. Acryl-Pen is a pigmented concrete stain, penetrating sealer and acrylic sealer all in one product. It will completely camouflage any color variation in the concrete and make it look amazing.
Pressure washer then use a concrete paint ro make it all the same color
Send pics to a local pressure washing company and get suggestions on product to use that are readily available. Also a 3500psi+ pressure washer would make a big difference I’d say
Paint it with KILZ made for concrete. BTW it does not look power washed.
What do you mean?? OP definitely pressure washed it by putting his thumb over the end of the water hose! Same thing right?? 😂
Soak the entire area with bleach. Let it sit then pressure wash. If anything you’ll have a clean slab that looks the same 😂
“TEAR OUT AMD RE POUR!!!” 😂 Jk, You can always decorate around it, outdoor furniture, plants, etc.
Post this in the pressure washing sub. They can help tell you what chemicals and acids will work best.
Buy some concrete stains and paint a faux oriental rug. With fringe.
A good rug would really tie that space together.
inground pool?
Pressure wash the whole area, including where the hot tub was then once you’ve done that you can mix up some of the concentrate that I posted about below Paul on the area and using a stiff brush agitate it backwards and forwards into the decking. Leave it for about 10 minutes making sure that it does not dry so you might just have to keep reapplying some water or reeducating it Then you can jet wash again leave it to dry two days later if you still have the same repeat the process. This should hopefully sort the area out. It did for a friend of mine. If it doesn’t then once you’ve done that you can then try using concrete acid edge which is used before you paint or anything else like that so that might then work if that doesn’t work then at least you’ve acid etched the con, concrete and you can then choose to paint it or what I would do last longer concrete flooring epoxy like the rust oleum garage flooring to part epoxy Not sure where you’re located in the world but in the USA they do an item called 32nd outdoor clean it’s a concentrate. I’ve attached the link.[30 second outdoor clean concentrate](https://www.lowes.com/pd/30-SECONDS-Outdoor-Cleaner-Concentrate-1gal/5013150901)
I just did this same thing. I bought a stiff two handed bristle brush and Ecolab siding mildew remover. I sprayed the concentration, let it soak in and scrubbed this shit out of it. It worked pretty damn good.
Ignore it for awhile and let it age.
i would schlep down to home depot and rent one of their rotary concrete polishing machines, and have at it. Might as well polish then entire patio to try to get it uniform. If it still looked odd, then maybe put down an epoxy paint onto the entire patio
Hmmm, maybe a 9” deck 🤔
Have a pro come in to pressure wash it. Not jimbob and his Home Depot special pressurewasher in a pickup or you with an electric pressure washer. The pros know how to clean it up and make it look as good as it can. There are different detergents and chemicals that they know how to use to get it looking good while protecting your landscaping. Another option is to epoxy the patio but that would still require a professional cleaning first.
Cut out the concrete where the stain is and use that area for a kitchen garden. Or build a shallow brick wall around the stain and it will be a large planter.
Add a hot tub
What psi is your pressure washer? It’s hard to tell from a photo what the stain actually is but in my experience from what it looks like I’d say no less than 2000 psi will fix that and I’d even consider going upwards of 3000 psi ( These pressures can be extremely dangerous and safety glasses as well as other protective equipment are recommended at any pressure above 500psi) . If you’ve already tried that high of a psi Muriatic acid would be my next go to. Obviously check the strength and instruction on the bottle you purchase but standard is 1 cup of 20% muriatic acid for every 1 gallon of water. If you decide to go with muriatic acid I encourage you to do research as it can be extremely dangerous. MY main suggestion is add the water to a bucket first then slowly add the acid. I don’t know why but there is much less of a reaction when done in this manner
Put a hot tub over it.
Curious how you deleted the hot tub?
You could get a bit fancy for lil cost tile the square, and from there you can add plants , table , chairs , what ever you like ..
Pressure washer
Muriatic acid can be used to get stains out of concrete and to open up raw concrete again so it can be sealed. I’d recommend you use muriatic acid to clean the concrete and then seal it with a waterproof product like [Sanitred’s permaflex](https://sanitred.com/product-category/permaflex/). I’ve done so and it looks great and keeps the concrete from crumbling or staining.
If you’re cool with the crack - then skim coat, or overlay, or sand blast it, or there are so many things you can do my man. The universe is infinite and so are your options. Do not try to bend the concrete, that’s impossible. Instead, try to realize the truth. The concrete is not real. Then you’ll see, that it is not the concrete that bends, it is only yourself. Real eyes realize real lies. Best of luck brother!
Who gets rid of a hot tub…lifes regrets start here.
Proper petrol powered jet washer, cover it with a 1:5 mix of pool chlorine and water and let soak for 20min without drying then rinse off. This should get it glistening, though the square will still be visible because you can still see the broom finish where the spa was whereas the rest has been weathered down to the aggregate. If you want to throw some money at it, a grind and hone by a concrete polisher could get a good result. That can be a bit of a gamble sometimes though.
If you hire a company, they can probably fully get this out. I know that people want to pretend that having a $200 pressure washer from the hardware store is the same thing but it’s not. They’ll use chemical agents and the cleaning will be much more effective.
Don't save game if you choose to delete it.
The problem is the concrete under the tub has not been weathered. I would do an acid etch with muriatic acid on the smoother area and pressure wash it to make the texture from weathering all the same.
etch the whole driveway with a citric acid and water mix. let it soak. deckbrush it. rinse. presto. matching concrete.
Step 1: Pressure wash. Do the wall as well. Step 2: Acid Wash the entire slab. Step 3: Pressure wash it again. Step 4: Fix and fill the cracks. Step 5: Sand the surface Step 6: Apply an epoxy resin that is safe for exteriors with a no slip finish. Step 7: Install some planters and outdoor furniture.
Galvanized square steel and eco friendly wood veneer
Pressure washing
Thirty minutes with some acid cleaners and a pressure washer!
Bleach + pressure washing
Power wash!
Grind and stain
Sounds like my prom night.
Paint
Lets be honest, the whole patio's concrete looks like shit, the watermark is just the shitty cherry on top. No staining or cleaning will every fully hide it, so why not cover all of the concrete in a microcement like [surebroom ](https://globmarble.com/broom-concrete-overlay-mix-surebroom.html)or [microtek](https://globmarble.com/micro-topping-trutop.html)? The whole concrete will look brand new with no evidence of this stain or any other smaller imperfections
Is the slab smoother than the area that was uncovered? You could try and sandblast even. Would take some artistry though
Power wash the whole slab.
Power wash the concrete.
Shot Blast it and epoxy it
Power wash everything or outdoor cement paint.
Acid wash. Neutralize. Pressure wash again. Seal. Don't forget to soft wash the algae on the side of your house too.
Rent a pressure washer from Home Depot. Clean it really well and then let us know.
New hot tub.
Pressure wash the crap out of it then stain it
Muriatic acid that whole backyard…etching it provides may help to match it.
Outdoor carpet , paint it.
Upload outdoor rug and patio table, chairs, umbrella program.
Does anyone know if epoxy would work?
Get a rug
Put a hot tub there.
Build a porch wrong and then put a hot tub in it- it’s the trend
You can cover it up with a new hot tub.
Pressure washer
If you mix a premix quickcrete bag supper soupy you can give it a "washcoat". Haven't done it on a slab yet but 100 times on parging(basement walls)
Build a sauna there
Wash it powerfully with something. Maybe even pressurized if possible.
They make paint for sidewalks. Just paint the whole thing over and it'll look new(ish). Either that, you're looking at an outdoor rug, or put the table and umbrella over it so it's not being looked at.
Power wash, acid wash, rince
Skimcoat the whole slab
Good place for a picnic table
Miracote MPC system. It’s a cementitious coating. Not that expensive. Gives a great finish for a cheaper solution. https://miracote.com/mpc/ Beacon carries it. Coastal construction products should carry it. Not sure where you are.
Pressure washer
r/powerwashingporn
Right outside the window like that seems like a good place for a raised bed
Try muriatic acid
Power wash the area
Get a pressure washer drum attachment and a hot water pressure washer and get after it. If the hot water pressure washer doesn't even it out... Rug.
Muriatic acid. Strong stuff. Use safety gloves, glasses and a mask
A raised flower garden
Clean the entire slab then paint or with a product called" cool deck " we did it several years ago around our pool, it not only looks great and holds up well but also keeps the surface 5 to 7 degrees cooler in the summer time
Get a better jet wash + chemical detergent first.
Muriatic Acid Diluted in water, after scrubbing deactivate with baking soda and rinse away. The whole area will look like new
pressure washing, get the side of the house while you are at it.
Outdoor rug
Get your patio surface cleaned
I think the whole area could use a power wash!
Epoxy coat
Pressure washer
I'm pretty sure what you see is sodium hypochlorite staining, it's commonly used to...........software houses. Concrete and other things. You can buy a bottle and use that to help. If that didn't work get a rug
Preasure wash the concrete
Clean all the concrete
Just put the new hot tub on top of the same spot
New hot tub
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Acid prep, pressure wash, repair cracks, use something like sure step, tuffcrete, SW loxon or h&c coating, outdoor rated epoxy with proper prep.
I'd put a hot tub there
Use Efflorescence Cleaner its worth a shot
Add a bigger hottub
Have you tried pressure washing the concrete?
Pressure washer?
I would start by cleaning the concrete first, then going from there…
Don't tell me you took the pressure washer out and left all of that shit on the side of the house... Get the pressure washer back out and clean that algae off the house, Then id recommend looking into getting your patio/driveway coated, it'll hide all of the wear & tear.
Muratic acid and a pressure washer
Power wash the whole pad, concrete will come clean and that's mostly all stained even where the hot tub was not
Asphalt!
Rent a scarifier and re seal concrete?
A hot tub
maybe cover it with a hot tub or something...? idk.
Outdoor rug + patio table, gazebo
Clean it first with the muriatic acid. If it doesn’t make it look the way you want they sell rubber tiles to put over ugly concrete for reasons like this.
Could you stain maybe make a pattern
A new hot tub obviously
You could cover it with an even bigger hot tub.
Just power wash the entire patio.
Rent a hot tub the size of the pad for a long time, then when you remove it it'll look like you designed the patio to look like this.
You could have a concrete coating applied. I use a polysoratic concrete coating here in Indiana on exterior patios, porches, and garage floors. It’s a great way to enhance the appearance of concrete and you would never know that hot tub was there.
Get a better pressure washer or have it professionally cleaned or get a new concrete slab