Recent content by aquacruise

This post here Whole house power question touches on the issue, some mention about isolation transformers and also line filters. Regarding the Pentair Intelliflo VS pump, but one would imagine that they use similar VFD circuitry

Thanks Jim. Sorry about that, and edit accepted and justified. So this issue relates to VFD, and the level of harmonic distortion that VFDs produce that feeds back to supply side. Depends on the quality of the VFD circuits I am told. But I have also reached out to Pentair in case it is faulty...

Just installed a new Pentair Superflo VST and immediately noticed all LED lights in the main house flicker when the pump is on. I've read about this issue several places and understand it's due to harmonic distortion from cheap VFD circuit back-feeding into the supply. Some say it's to do with...