I am new to kegging, so maybe I am missing something. I purchased a two keg kit from midwest. I have a single regular that uses a two way splitter. I have only done one batch, the regulator worked just fine. This past weekend I carbonated some soda. I pressurized at 35 psi for two days. Carbonation is good after the two days. I purge and reset the regulator to 8 psi for dispensing. I come home today and my regulator has the pressure set to well over 60 psi. There is enough pressure reaching the keg where soda is dripping out of my faucet. I purge the keg and turn the regulator all the way down (I unscrewed the screw/nob as far as it would go without forcing it). I turn the gas back on. The pressure gauge slowly goes up without any modifications of the regulator nob. I thought this was a bit strange. I left the keg sit in the fridge for a few hours. I come back and the pressure is around 30 psi, and I haven't touched the regulator screw/nob. I thought "maybe this is from the CO2 in the soda". So I disconnect everything from the regulator and from the kegs. I take the regulator and tank out of the fridge. I do the same thing, but with no keg. This time the pressure increases more quickly. Reaching a pressure of well over 50 psi in less than a minute. I turn off the tank and purge the regulator of an CO2. The pressure does not increase, which makes sense.
So here's my question.... I am running very low on CO2 (~200psi). Could my low pressure in the tank cause my regulator to not regulate properly?
Ontap: Hard Cider
Primary: IIPA, All-Tythos IPA
On Deck: Munich Dunkel, Classic Rauch, Breakfast Porter, American Stout