u/vettewiz

Looking for some guidance here -

About 6 years ago we added a pool, and fed the pool shed with 2x 100A panels, each coming off of a different one of the main home's 200A panels. The pool has some heavy loads, including 4x 3HP pumps, and a heat pump, plus other stuff.

Ever since adding these loads, whenever all of the pumps are on at once - lights on the other end of the house start to flicker noticeably. These are basic LED bulbs on dumb switches.

Any thoughts on what could be going on?