HOW TO MAKE IT:
Buy sulfuric acid at the auto parts store for 7 dollars. Just ask them for battery acid. Get the 33% kind (that means its already partially diluted)
Get a gallon of distilled water, pour out 2 cups.
Put 1 cup of battery acid in your gallon jug of water. Wait a minute or two. Put top back on. Lightly agitate to mix.
Thats it, you have just made a gallon of PH down for a maybe a dollar or so.
SAFETY:
Never pour water into an acid. Always pour acid into water. Wear gloves. Wear safety glasses. If you get it on you, wash it off. Don't drink it.
BENEFITS:
Availability: You can buy sulfuric acid anywhere in the world no questions asked.
Cost: Sulfuric acid is many times cheaper than ph down from the store.
Stealth: Sulfuric acid is used in batteries, and people will assume you are using
it for batteries. If you buy hydroponic ph down they assume you are
growing something hydroponically.
Ease of use
for large
growers: If you have a large res you can use battery acid straight into the
remote res, you wont have to dump cups of ph down into it any
longer, as a small amount of sulfuric acid undiluted(33% is undiluted)
does the same thing.
MYTHS AND FACTS:
Sulfuric acid has Lead in it - FALSE: There is no lead in battery acid, there is lead in batteries. No one is saying to drain batteries and use the acid from it.
Sulfuric acid is Very Dangerous and you will die a horrible death and your hand will melt off and your penis will shrivel - FALSE(mostly): We aren't dealing with pure sulfuric acid, if it was 100% sulfuric acid it would be bad, but you aren't going to find 100% acid anywhere. Haven't any of you ever had battery acid on you? Ive had car batteries explode on me, and I get my homemade battery acid ph down on my skin all the time. Its not like its going to eat you alive, it just itches. If you get it in your eyes, it will be bad, so wear eye protection. Sulfuric acid you will buy at the auto parts store is most likely 33%, which means its already diluted, so you end up with a 3.3%. Household bleach in your eyes sucks too. Are you afraid of bleach? When I get it on my hands when concentrated(33%), I just wash my hands. Unconcentrated, I just rinse it off with water. Ask any mechanic, you wont see them wearing safety glasses while changing batteries or filling them with acid unless their boss makes them simply because it isn't that big of a deal. You don't dress up in a space suit to pour chlorine or shock into your swimming pool do you? You will die, but probably from cheeseburgers and sodas (sodas contain phosphoric acid lol)
Phosphoric is much safer than Sulfuric - FALSE In diluted form the difference is minor. Either one will make your skin itchy. They use Phosphoric acid in tile cleaners, rust removers, and things of that nature. Phosphoric acid is made from Sulfuric acid. They put rocks high in phosphate into sulfuric acid to make it.
Fact: Many people use sulfuric acid as a ph down. Not just marijuana growers, also berry growers, people who run orchards. They also use sulfur, which breaks down into sulfuric acid in the ground. This is a naturally occurring acid in the ground. Its not like you are pouring antifreeze into your res.
Fact: Most people who say using sulfuric acid for PH down doesn't work have never used it, don't understand what ph down does, and don't know why they are using it. They only know what someone else told them or they are reacting to the term 'battery acid'