Stream 3 minimum distance to each other

[HippieSmell]

I have multiple Stream 3 and I noticed some odd behavior. I had one pump perpendicular to another and when I plugged one in, the other pump would rotate as the other pump initiated startup. Clearly they are interfering with each other. Is this a known issue? How far away from each other so they need to be?

 

[rvitko]

The magnetic fields are very strong on these pumps, I would think with 4-6" of space though this should not be an issue.