How do I kill grass, weeds, and moss that grow between the bricks?

Just use straight vinegar you cannot mix the salt with it it will ruin your bricks; pour or spray weeds with straight vinegar soaking center of weeds down into roots do in full hot direct sun no rain 3 days ( Salting is one of the most common mechanisms of deterioration of porous materials,Efflorescence is one of the first signs of moisture problems for cementitious materials, especially masonry. A by-product of moisture combining with free salts, this phenomenon is not only just a cosmetic problem—left unchecked during freeze-thaw conditions, it can cause brick to weaken, spall, or crumble in some cases )other ingredient dish soap it contains phosphates which is bad for environment, your soil & plants, killing beneficial microbes needed for healthy soil/plant growth/lawn just use the vinegar alone it will work and it's cheap; cannot just use any DIY remedies without researching the effects they have on surroundings or what you are putting them directly on.

This article is really helpful Dawn

https://www.hometalk.com/diy/outdoor/pest-repeller/the-truth-about-natural-weed-killer-exposed-33053043

Hi Dawn - The struggle is real, isn't it?!? This is the most effective all-natural weed killer DIY that we use. It's even been featured on Hometalk! Hope this helps! Hugs, Holly

https://pinkfortitude.com/weed-killer/

PS - We have a FREE eBook with recipes for all of my homemade and all-natural cleaners. You can download it here --> https://pinkfortitude.com/thank#GreenClean

Consistently pouring boiling hot water on them might help, too.

Hi Dawn, the easiest and least expensive method I've used is: 1/2-1 cup table salt and a squirt of "Dawn" mixed into 1 gallon of white vinegar. Place the mixture in a garden sprayer or sprry bottle and spray onto the weeds, grass, and moss that you want to get rid of. The Dawn holds the mixture onto the surfaces sprayed on for long enough for the mixture to take action. Wait a day or so and you'll notice the weeds, etc. begin to die. Good riddance!!

Here's what I use: Take a spray bottle and cover the bottom with salt and fill it up with vinegar. Add a few drops of dish soap and shake. Spray on the weeds.

https://www.hometalk.com/43299149/all-natural-weed-killer