Then you do not toast the element if you flip the switch by accident. Then once the heater is filled, turn on the circuit breaker and then flip the switch as needed. See this pic of the circuit breaker on my T2499. Let us know if there is any wording at all on that switch. Good luck.
To lower the pH level of soil and make it more acidic, vinegar can be applied by hand or using an irrigation system. For a basic treatment, a cup of vinegar can be mixed with a gallon of water and poured over soil with a watering can.
The scale is logarithmic, and runs from 0 to 14. A pH of 7 indicates a neutral solution, while lower pH is acidic and higher pH is alkaline. Because the scale is logarithmic, a pH of 5 is ten times more acidic than a pH of 6. What pH literally measures is the concentration of H+ ions in a solution. pH stands for the French pouvoir hydrogÃ¨ne, meaning hydrogen potential. pH is important for many things in biochemistry. Certain bodily fluids have a particular pH that aids their function, like highly acidic gastric acid.