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I'm stumped. I've been searching for definitive instructions for how to hard reset an Aqualink RS4 controller back to factory defaults. Does anyone have instructions on how to do it? Here's what I'm planning based upon what I've gleaned from my searches: 1) Clear Memory 2) Disconnect 9...

I've got a Taylor K2005 DPD test kit that I'm using to test my water. Recently a new store opened up in town, that's using the Waterlink Spin Labs, so I gave them a try. Their Waterlink Spin Lab hardness is consistently 70-100 ppm higher than what both I and Leslies get with the Taylor...