Out of ph help lowerph

I ran out of ph sulotion ordered more but wont be here til monday is there a way to raise and lower ph safley while im waiting

I do believe this is what your looking fo.
Hope it helps


To make soils less acidic, the common practice is to apply a material that contains some form of lime. Ground agricultural limestone is most frequently used. The finer the limestone particles, the more rapidly it becomes effective. Different soils will require a different amount of lime to adjust the soil pH value. The texture of the soil, organic matter content and the plants to be grown are all factors to consider in adjusting the pH value. For example, soils low in clay require less lime than soils high in clay to make the same pH change.
Selecting a Liming Material
Homeowners can choose from four types of ground limestone products: pulverized, granular, pelletized and hydrated. Pulverized lime is finely ground. Granular and pelletized lime are less likely to clog when spread with a fertilizer spreader over turf areas. The finer the grind of the limestone the faster it will change the soil pH value. Hydrated lime should be used with caution since it has a greater ability to neutralize soil acidity than regular limestone.
Time of Application and Lime Placement
Lime needs should be determined by a soil test. Soil samples should be taken in the fall for the succeeding year’s garden. If test results indicate a need for limestone, it can be applied in the fall or winter months. Generally, for best results, limestone should be applied two to three months prior to planting to allow time for it to neutralize the acidity.
The most important factor determining the effectiveness of lime is placement. Maximum contact of lime with the soil is essential. Most liming materials are only slightly soluble in water, so incorporation in the soil is a must for lime reaction. Even when properly mixed with the soil, lime will have little effect on pH if the soil is dry. Moisture is essential for the lime-soil reaction to occur. In the case of lawns, it can only be surface applied and watered into the soil.
Wood Ashes
Wood ashes can be used to raise the soil pH. They contain small amounts of potassium, phosphate, boron and other elements. They are not as effective as limestone but with repeated use, they can drastically raise the pH value of a soil, especially if the soil is sandy in texture. Ashes should not come in contact with germinating seedlings or plant roots as they may cause damage. Spread a thin layer during the winter and incorporate into the soil in the spring. Check the soil pH annually especially if you use wood ashes. Avoid using large amounts of wood ashes because excessively high pH values and subsequent nutrient deficiencies may result. Coal ashes do not have any lime value and may actually be acidic dependent on the source.

Many ornamental plants and some fruit plants such as blueberries require slightly to strongly acid soil. These species develop iron chlorosis when grown in soils in the alkaline range. Iron chlorosis is often confused with nitrogen deficiency because the symptoms (a definite yellowing of the leaves) are similar. Iron chlorosis can be corrected by reducing the soil pH value.
Two materials commonly used for lowering the soil pH are aluminum sulfate and sulfur. These can be found at a garden supply center. Aluminum sulfate will change the soil pH instantly because the aluminum produces the acidity as soon as it dissolves in the soil. Sulfur, however, requires some time for the conversion to sulfuric acid with the aid of soil bacteria. The conversion rate of the sulfur is dependent on the fineness of the sulfur, the amount of soil moisture, soil temperature and the presence of the bacteria. Depending on these factors, the conversion rate of sulfur may be very slow and take several months if the conditions are not ideal. For this reason, most people use the aluminum sulfate.
Both materials should be worked into the soil after application to be most effective. If these materials are in contact with plant leaves as when applied to a lawn, they should be washed off the leaves immediately after application or a damaging leaf burn may result. Take extreme care not to over-apply the aluminum sulfate or the sulfur.
You can use the following tables to calculate the application rates for both the aluminum sulfate and the sulfur. The rates are in pounds per 10 square feet for a loamy soil. Reduce the rate by one-third for sandy soils and increase by one-half for clays

Personally; I would wait until Monday. Is there some reason you need PH today? I have never liked homemade PH adjusters. They are unstable and lead to more issues than they resolve. IMO

Do you have any fresh diluted sulfuric acid, “battery refill”? This is what I use for my greenhouse, and my grow room.

About 5 bucks at the parts store

WOW I never heard of that before. How would you dilute something like Sulfuric Acid I know it’s with water
We used that to clean concreate floor very very strong stuff lol

Yes, plants needs sulfur, and a battery refill is just pure, fairly concentrated, sulfuric acid, you dilute it a great deal and it adjusts your pH to where you need it and give your plant a little needed sulfur.

Cool…Thank You I Placed this info into my note pad for future reference


I have some detailed stuff on mixing it here on the forum somewhere, but the important thing is to remember to always wear eye protection, never inhale the fumes, and always pour a smaller amount of the more concentrated acid solution into the more dilute, more pure water solution, not the other way around.

If you pour pure water into the stronger acid, you will get acid boiling and strong acidic fumes.

So add a few drops of the acid to say a gallon of water, and you have a pH down.

Test and adjust as needed.

Thanks MacG! Thanks for helping to explain this. I really appreciate your safety warnings! :smile:
I also want to say. If you spill sulfuric acid on yourself; All you have to do is immediately rinse with water.

I buy Shop refills; Which is approx. 2-3 gallons. For Small grow op use; A battery refill kit will do. I dilute this with distilled 1 to 1.

This allows me to use a few ML for PH adjstment.

Mkae sure that if you use an alternative contain; It is capable of containing Acid.

I use baking soda (Ph up) and distilled white vinegar (Ph down). Should there be a problem with this? This is how I have always dealt with any Ph problem this way. However, I have never had roots to develop as I know they have to in order to make things work right. I have also never been very successful at this.