could someone tell me about ths alps rod wrapper?

Not exactly sure what you want to know. The Alps / American Tackle / Pac Bay power wrappers are all about the same. They are good low to mid range cost wrappers. What sets the Alps / Batson wrapper apart is the very nice chuck that is available. I have replaced the original American Tackle chuck and the Pac Bay upgraded chuck with the Alps chuck and consider it a major improvement. These machines are easy to set up, simple to use and are capable of turning light material such as cork & EVA (foam). I know Get Bit Outdoors carries them & probably some other sponsors on the left as well.

I bought my Alps winder from Bingham Enterprises and I'm very happy with it.

My ALPS wrapper cam from Get Bit and I'm very happy with it.

The one thing that I needed to do with it was to change out the power cord with a two-wire w/ground. I needed to add the ground wire to eliminate a small sensation I was feeling in the bed when plugged in with the power switch was in the "off" position. I discussed this with Batson and they sent me another power set-up to see if that would help. This was done at their cost and it didn't help. I talked to them what I had done to fix the problem. I'm not sure if they are still building them like mine (two wire) or if they changed out the power cord to the three wire. I have a son-in-law that is a EE suggest this and it solved my problem.

I have never experienced this phenomena.
Could it have something to do with the house wiring?

I don't know, I tried different circuits that were on different electrical branches. They all gave the same results.

It is very faint, you have to barely touch the bed surface and slowing mover you finger along and it was there. I have several people try and they all had the same sensation.

But it is corrected with the 3 wire with the green connected to one of the screws.

I'm happy with it!