sump pump switch

We just bought a house. The sump pump has been coming on and staying on. By looking online, I have figured out that is an upright pump. The switch sticks, and I can turn it off by simply pushing down the switch arm that connects to the floater. The motor is a GE.
Do I need to replace the floater or the switch? Can you get these as separate parts? Is it easier and or better to replace the part(s), get a piggyback switch, or replace the pump?

It is located in the crawlspace. In a related question...Our crawlspace has a moat. The crawlspace is not concrete - it's more like clay, mud, sand and rocks. We need to do some grading and stuff around the foundation, and I did see where there is a possible leak in the foundation. But, the water level is below the lip of the pump reservoir. Is this normal?

BTW our house is in Round Lake Park, IL near intersection of 134 & 120.
Dawn

Drop it in the dumpster and get a good quality submersible pump...
May I suggest a zoeller pump.

Dawn, unless the upright pump is made by Tramco, Swaby, or Weil, replace it with a good quality submersible pump like a Hydromatic or Zoeller pump.

SewerRatz said:

Dawn, unless the upright pump is made by Tramco, Swaby, or Weil, replace it with a good quality submersible pump like a Hydromatic or Zoeller pump.

Click to expand...

I learned something new today Mr. Ratz...
I didn't know that any upright sump pump was considered to be good and now I know of 3.

Solution

Well, needless to say - I was not too happy with the lack of help I received nor the crass answer... But I thought that I would post my solution in case it can help someone else.

The sump pump float was getting stuck in and on position by getting caught up on the wall of the pit. My brother-in-law, who lays concrete foundations, suggested, correctly, that the pump had just vibrated itself too close to the pit wall. I didn't know that the pump wasn't attached to anything, so I followed his suggestion and just moved it over a little. Problem solved. The next time he came over, he went down there and stabilized the pump so it wouldn't move around so much. Now, weeks later, it is still running perfectly!

Good luck to those who seek real answers like me.
Dawn