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Getting smooth drywall joints without losing your mind

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Honestly, I know exactly what you mean about not being able to unsee a bad joint. It’s like once you notice the tiniest ridge or dip, your eyes go straight to it every time you walk by... and then it just bugs you forever. Using a wider knife definitely helps feather things out. I’ve found that going up to a 12-inch or even 14-inch blade makes a big difference, especially on the final coat.

Wet-sanding is interesting - I’ve had mixed results there. Sometimes it seems like it helps blend things, but I’ve also ended up with little fuzzies or rough patches if I’m not careful with the sponge (maybe that’s just me being impatient). Do you find the eco-friendly compounds are easier to sand when wet? Some of the ones I’ve tried felt a bit gummy, but maybe I just haven’t found the right brand.

Totally get wanting that crisp, fresh wall, even in an old house. There’s “character” and then there’s just distracting flaws. I actually use a work light at a low angle when I’m finishing joints; it really highlights any imperfections before they become permanent. Kind of obsessive, but it saves me from having to redo stuff after painting.

Curious if you ever use setting-type compounds for your base coats? I keep hearing they’re less prone to shrinkage and cracking, but they dry so fast I always end up rushing. Maybe there’s a trick to working with them that I’m missing.


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cycling7407953

I actually have to push back a bit on the wider knife thing - sometimes I feel like going too wide can make it harder to control, especially if the wall’s already a bit wavy. I’ve had better luck with a 10-inch for most of the work, then just feathering out the edges with a light touch. As for eco-friendly compounds, yeah, some do get gummy when wet-sanding, but I’ve noticed if you let them cure a full day longer than the label says, they sand much cleaner. Setting-type compounds are great for base coats, but I only mix up what I can use in 10-15 minutes... otherwise it’s just stress and wasted mud.


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lisawilson695

Letting eco compounds cure longer is a game-changer - I totally agree there. I’ve also had that gummy mess when I got impatient and tried to sand too soon... lesson learned. For me, a 10-inch knife hits the sweet spot most of the time, but sometimes I’ll switch to a 12-inch for those final passes if the wall’s pretty flat. One thing that helps: I always keep a spray bottle handy to lightly mist the mud before feathering the edges. Makes blending way easier, especially on older walls that aren’t exactly straight.


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kathyf10

That spray bottle trick is underrated - makes a world of difference, especially on those old plaster walls that seem to have a mind of their own. I’ve found myself reaching for the 12-inch more often lately, just because it saves me time on the bigger patches, but I totally get what you mean about the 10-inch being the sweet spot. Ever tried using a flexible blade for those weird corners? Sometimes it feels like overkill, but it’s saved me from redoing a few spots.

I hear you on the patience thing. It’s wild how much better the results are when you just let things cure properly, even if it means waiting an extra day. Funny how something as simple as waiting can be the hardest part. But hey, every project teaches you something new, right? It’s all about finding those little tricks that make the process smoother and less frustrating.


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I totally get what you mean about the flexible blade - sometimes it feels like you’re bringing a bazooka to a knife fight, but man, those old corners can be brutal. I tried one of those bendy blades in my dining room and it actually made the weirdest angles look halfway decent. Waiting for mud to dry is the real test, though. I always think I can rush it and then end up sanding forever... patience is definitely not my strong suit.


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megandiyer

I hear you on the patience thing - waiting for mud to dry feels like watching paint dry, only somehow worse. I used to try and cheat it with a hair dryer, but all that did was make the top layer crusty while the inside stayed wet... total rookie mistake. Those flexible blades are a game changer for weird corners though, especially in these old houses where nothing is square. Have you ever tried the quick-set mud? It dries faster but can be tricky to work with if you’re not used to it.


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Quick-set mud is a bit of a double-edged sword. It’s awesome for patch jobs or when you’re on a tight timeline, but I’ve found it sets up faster than I expect - especially in warm weather. I usually mix smaller batches to avoid waste. Have you noticed any issues with sanding it compared to regular joint compound? Sometimes it feels like it gets rock hard and takes more effort.


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ai_mocha

- Totally agree, quick-set mud is a lifesaver for patching, but it’s unforgiving if you don’t move fast.
- Sanding is a pain - feels like trying to smooth out concrete sometimes. I’ve actually dulled a sanding sponge or two on it.
- I’ve started using a damp sponge for the first pass, especially on old plaster walls. It helps knock down the ridges before it turns into a rock.
- If I need a super-smooth finish, I’ll do a final skim with regular joint compound. It’s more work, but worth it for those old, wavy walls.
- Anyone else notice it shrinks less than regular mud? That’s one upside, I guess...


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writing229

Yeah, I’ve noticed the shrinkage is way less with quick-set mud too. The tradeoff is definitely the sanding - feels like it takes forever to get those edges feathered out. For tricky spots, I’ll sometimes use a wider knife and blend into the existing texture, especially if the walls are super old or uneven. It’s a bit more work up front, but saves me from endless sanding later.


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I’ve run into the same issue with old plaster walls - sometimes it feels like you’re chasing your tail trying to get everything flush. Have you tried using a wet sponge for the final pass instead of sanding? I’ve found it helps with dust and can smooth out those feathered edges, but I’m not sure it works as well on every type of mud. Curious if anyone’s had luck with that on quick-set.


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chef36

Getting Smooth Drywall Joints Without Losing Your Mind

I’ve run into the same issue with old plaster walls - sometimes it feels like you’re chasing your tail trying to get everything flush.

That’s the story of my life with these 1920s walls. Every time I think I’ve got a joint perfectly level, the light hits it just right and... nope, there’s another ridge. I totally get what you mean about chasing your tail.

I’ve used the wet sponge trick a lot, especially in tight corners where sanding just makes a mess or risks gouging the old plaster. It’s a lifesaver for dust, and honestly, it gives you a lot more control feathering those edges. But with quick-set mud? Mixed results. Sometimes it sets up so fast that the sponge just drags or leaves streaks if you’re not careful. I usually stick to regular all-purpose for the final skim if I want to sponge.

Don’t get discouraged - these old walls have character, and sometimes a little imperfection just adds to the charm. If you step back and can’t spot the seams in normal light, you’re probably doing better than you think.


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I swear, every time I think I’ve finally nailed a joint, the sun comes in at just the wrong angle and suddenly it looks like a mountain range. Tried that sponge trick too - sometimes it works, sometimes it just makes a weird mess. At this point, I’m convinced these old walls are just trolling me.


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georgemagician

I hear you - those “mountain range” joints are the bane of my existence too. I’m starting to think the more money I try to save by DIYing, the more time I spend cursing at my walls. Honestly, I’ve tried every “budget hack” out there, and half the time it just makes things worse. The sponge trick? Yeah, sometimes it’s magic, sometimes it’s like wiping mashed potatoes around. Maybe it’s just these old houses… or maybe the pros actually earn their pay after all.


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The sponge trick? Yeah, sometimes it’s magic, sometimes it’s like wiping mashed potatoes around.

Honestly, I think the sponge thing is overrated. Maybe it works for some, but nine times out of ten I just end up making a bigger mess. I’ve had better luck with a wider knife and just taking my time - lots of thin coats, let ‘em dry, sand lightly, repeat. It’s tedious, but it beats chasing ridges and blobs all over the place.

I get what you mean about old houses, though. Nothing’s straight, corners are never square, and suddenly you’re inventing new curse words. Still, I wouldn’t say pros are the only ones who can get it right. Most of the “budget hacks” are more trouble than they’re worth, but if you stick to the basics and don’t rush it, you can get pretty close to pro results. The trick is patience, not necessarily fancy tools or shortcuts.


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- Tried the sponge thing a couple times - honestly, it just made me question my life choices. Maybe I was too impatient, but it felt like I was just smearing joint compound around and not actually smoothing anything out. Ended up with more sanding than if I’d just used a knife in the first place.

- My house is from the 60s, so nothing’s level or square either. Corners are a nightmare. I’ve found that using a 12” taping knife helps a lot for feathering out seams, especially where things aren’t straight. It’s not fancy, but it covers more area and hides the worst of the wonkiness.

- Patience is definitely key. I used to try to rush it - slap on thick coats, thinking I’d save time. All that got me was more sanding and frustration later. Now I do thin layers, let each one dry overnight (even if it means the project drags on), and sand lightly between coats. It’s boring, but it works.

- One thing that helped: using a work light at a low angle to spot ridges and dips before painting. You see stuff you’d never notice otherwise...and fix it before it drives you nuts later.

- Budget-wise, I don’t think you need all those “miracle” tools or gadgets they sell at the big box stores. A decent taping knife set and some patience go further than any hack I’ve tried.

- Only shortcut I’ll vouch for is pre-mixed mud - saves cleanup and mixing time, especially for small jobs.

Not saying my joints are perfect, but after enough trial and error (and cursing), they’re good enough that nobody notices unless they’re looking for flaws with a flashlight. That’s close enough for me.


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- Tried the sponge trick too - total mess for me. Ended up with more gunk on the floor than on the wall, and yeah, sanding city after.
- My place is a 70s split-level, so I hear you on nothing being straight. I use a 14” knife for big seams and honestly, it’s saved my sanity more than once.
- Thin coats are where it’s at. I used to glob it on thinking I’d save time... just made more dust and wasted compound.
- One thing I do differently: I use recycled drop cloths and sand with a vacuum attached to the pole sander - cuts down on dust everywhere, which is a win for my lungs and the planet.
- Never bothered with those fancy corner tools either. Old-school knife and patience gets me there, even if it’s not magazine-perfect.
- Pre-mixed mud? All day, every day - less waste, less hassle. Good enough is good enough when you’re living in the house while fixing it up.


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jonmitchell698

That 14” knife is a game-changer, I’m with you there. I tried those fancy inside corner tools once - felt like I was wrestling a folding chair. Old-school knife and patience just feels more natural. I do like setting-type mud for first coats, though. Dries faster and seems to shrink less, but you gotta work quick. Pre-mixed is way easier for the rest. And yeah, vacuum sanding is a lifesaver... learned that lesson after my first reno when the dust took weeks to settle.


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dhall41

Has anyone tried those mesh sanding pads instead of regular sandpaper? I keep hearing mixed things - some folks swear by them, others say they just clog up and make a mess. Also, curious if anyone’s experimented with tinted mud for the first coat? I’ve seen it used to help spot low spots, but not sure if it’s worth the extra step or just overkill.


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I tried those mesh pads on my first drywall project because they looked easier to use than regular sandpaper. At first, I liked that you could just rinse them off when they got clogged, but after a while, I noticed they actually gummed up faster than I expected. Maybe I was pressing too hard or not letting the mud dry enough? I ended up switching back to standard sandpaper for the last pass because it just felt smoother and didn’t leave as many scratches.

As for tinted mud, I actually gave it a shot on a couple seams in my hallway. Mixed in a little bit of blue food coloring (probably not the pro way...) and it did make it way easier to spot where I needed to build up more. But honestly, cleaning the tools afterward was a pain, and I’m not sure it saved me that much time in the end. If you’re super picky about flatness, it might be worth it, but for me, regular mud and a bright light did the trick.


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Mesh pads always seemed like a good idea until I tried them on my old plaster walls - same story, they gummed up way too fast and left more scratches than I bargained for. These days, I stick with 220-grit sandpaper for the final pass and just go easy on the pressure. As for tinted mud, I tried the store-bought pink stuff that turns white when dry... honestly, the color change was more distracting than helpful. A bright work light at a low angle shows every bump anyway, and it’s way less messy.


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