[Lowfer] well controller noise?

[Stewart Nelson]

Hi all,

The pressure tank for my well system is failing.
Rather than replace it, I am considering buying one
of the new constant pressure systems, which use
variable frequency drive to the submersible pump motor.

These controllers are switch-mode inverters that
run at LF.  I am worried about RFI.  Specifically,
although the mains input is probably well filtered,
the motor output might not be, and the well system
might form a decent earth loop antenna and radiate
lots of LF.

Do any of you have constant pressure systems?
Are there problems with RF noise from them?

Thanks and 73,

Stewart KK7KA