This product is an on board nitrogen generator. Most companies purchase nitrogen in cylinders at about 2000 p.s.i. We at Pit Crew Tire Service have chosen to invest in a system that will create nitrogen on demand and store it in an on-board 80 gal storage tank at low pressure. (170 p.s.i. for safety concerns) The USA trails European tire technology by about 10 years.
The pH scale indicates acidity or alkalinity. A soil with a pH number below 7 is acid, while one with a pH above 7 is alkaline. Garden plants typically grow best in neutral or slightly acid soil (pH 7 or slightly below; see illustration at left).
If your soil is acidic (low pH, at or below 6.0) or alkaline (high pH, above 7.0) it doesnât matter how rich it is in nutrients, the plants wonât be able to absorb them. pH is usually included in a soil test, or you can buy a pH Meter and determine the acid-alkaline balance of your soil on your own.