There are two problems, one we fill the radiator up with water every morning and then drive it for the day and cant find any leaks but the next morning all the water is gone and it seems to be spraying because when we are done driving the whole back left corner is wet. The second is that when we are driving it the temperature goes up all the way to the red line and then goes strait down to normal again and it repeats that. we think it is an air lock could we be right.

There are all sorts of things you can try. i would start with trying to identify the leak by running the car and monitoring it. see if there are any loose or leaking hoses. what kind of car is it?
also consider bleeding your coolant system. this will eliminate any air. it could also be a thermostat problem... this is usually an easy change, depending on your car. you can determine if your thermostat is going bad by boiling it for a couple minutes. if it does not open fully, it is defective and needs to be changed. if the valve is going bad and is having trouble opening and closing it could contribute to your indication problem.

Do a pressure check on cooling system, you might try some stop leak if leak is not too bad, you need to use the right ratio of antifreeze 50/50?