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.
Your ideal blood pH is between 7.35 and 7.45, which is slightly alkaline. The stomach is typically at a pH of 3.5, which helps food break down properly. High-acid food and drink. If you suspect you have problems with acidity, you can make changes to your diet to help improve symptoms. Foods that are considered acidic must have a pH level of 4.6 or lower. Foods that tend to cause more acidity in the body and that you may need to limit or avoid include: grains; sugar; certain dairy products; fish; processed foods