Another possible cause of a flat tire is simply that the tire is worn and old. You may need to get new tires. It is wise to keep an eye on your tires, an extremely worn tire is not safe to drive on.
A major cause of tire failure is under inflation. Follow the instructions and inflate your tires to the proper pressure for your RV weight. Check the pressure when the tires are cold. Buy a decent tire pressure gauge from your local auto parts store. They are cheap when compared to the price of a tire. If you are not sure of the right pressure, your local tire store can help you. A tire failure leaves you stranded by the side of the road. A blow out usually damages your RV. Avoid the problem as much as possible.
You can buy your tires at a bike store, order them from an online website or from an individual selling tires posted on a mountain bike classifieds website.
When people think of junk.yard near me they tend to think that they are worn out and worthless but that is not always the case. Many times the used tires are new in fact. Sometimes people buy new cars but they do not like their standard tires. They decide to take off the standard tires that they have on their new cars and buy new low profile or another type of tire.
We made it into Morarity, NM. The stations were all closed and it was hard to find any one that had a tire for sale. We stayed again in a truck stop parking lot, and I cooked supper in the camper. The next morning Bruce went out hunting for a spare tire. He found a tire shop that had two of them and we bought them. The spare we had put on was chipping off tread and so he changed that one again and put another tire on the spare rim. So, we are off again.
Not every tire takes the same amount of pressure. It often depends on the tire size and how heavy the vehicle is. You can find requirements on a sticker that is usually yellow in color and placed in the door jam of the car door on the side of the driver. Sometimes pressure requirements are printed right on the tire on the side wall. Other places manufacturers hide the sticker is under the door for the fueling area and in the glove compartment. PSI is the increment in which air pressure is measured. It means pounds per square inch. Most car tires take about 30 to 40 pounds each tire.