***Help***Pressure tank/pressure switch/pump
Here is a little history:
I woke up Friday morning and I noticed the pressure was really low, I paid no mind because I thought the wife was doing some laundry. On the following Monday, I still noticed low pressure so I decided to check the pump. It was spraying water from a hairline crack and the pump was constantly running. I repaired the pvc fittings both before and after the pump, but it still keeps running. I checked the pressure on the pressure tank since it has a tire valve on top, it was approximately 15-18 psi. I seeked tha advice of a person whom I thought was knowledgeabe and was advised to bleed the tank, so I let the air out. The pump still runs non stop. I seeked the advice of my neighbor who is more knowledgeable on pump set ups...it appears that the pressure switch is very hard to move. Is this normal? I have been reading the forums here for the past 3 days, sometimes it gets a little confusing as to the steps necessary. I am relatively handy, I just need to know what is wrong since I don't know how to test the pressure switch or the pressure tank.
What I have:
-I live in FL, so the well is about 60-70 feet deep.
-I have a 3/4 hp sta-rite pump next to the pressure tank.
-I have a blue pressure tank, but I am unsure of the size, it is probably about 2 ft.-2.5 ft. high. It has a valve on top. I don't know if it is a bladder tank or any other for that matter, I am not familiar with these setups at all.
-I think I have a 30/50 pressure switch.
-I checked the pressure on the tank this morning and it had none---0--- was this because I drained it?
1. Do I need to pump air back into the pressure tank? Do I do this by a regular pump into the valve on top? To what pressure, 28 psi?
2. Do I need to replace the pressure tank?
3. Do I need to replace the presure switch?
4. Please don't tell me I have to replace the pump!
Any advice will be appreciated. Thanks!