You were right. it is the neutral Regulator by Seachem that is giving me high phosphate readings. Thank you. I wouldnt have even thought about this being a problem
Speaking from experience....wink, wink. BTW, use the Seachem alkaline buffer instead. Just add enough to have your KH around 3 to 4 degrees. That should be enough to buffer against ph drop due to high CO2 or ph drop due to extremely software or RO water.