A:  The simple answer is no I am unaware of any cord improvement, made to this pump or any others in the Little Giant line. Nor have I heard of a pervasive cord problem with this pump. However I do know that Little Giant and essentially all sump pump manufactures run into problems when people use the cord as a leash. The water seal where the cord enters the pump housing is a critical water tight seal. Compromising this seal could lead to lethal electrocution. As such the pump should never be lifted up the cord. This is why this pump and similar pumps are equipped with a handle. If it is necessary to suspend the pump in order to lower it into a sump an appropriate rope or line should be attached to the handle. The line should be used to lower the or raise the pump. The cord should never be used for this purpose.

A:  Yes the difference is the cord length. This unit has a 25' cord and the other 18'

A:  115 Volt

A:  115 volt

A:  115 volts. We have been using these particular ones for a long time and they are a good product. Would highly recommend.

A:  It can be totally or partially.

A:  Great question. As a plumber I have installed quite a few sump pumps and sewage pumps over the years. It has been my experience that the biggest factor in determining the longevity of a pump is how thoughtful the installation was. For example I adjust my floats, the devises that turn pumps on and off, in such a way that the pumps are always under water. By keeping them constantly submerged and just clearing the water above them, three things take place. They never dry out and rust, they never become air bound and they always run cool. So yes I like to keep the pumps submerged. However this pump is a puddle sucker. Meaning it has been designed and built to pull water right off the floor down to a quarter of an inch. So it can handle it. Now once the pump has removed all the water it can, I would then shut it off so it does not super heat, but I would not be afraid to run this particular pump event though it is not submerged. The internal coil oil can handle that.

A:  no, not totally in water but can be. Can also be in some water so it pumps.