Since a short while the owner of a arctic spa and in research of more information about how to balance the water i stumbled over TFP.
I tried the teststrips, they don't really work. Very hard to determine the correct values.
So i decided to purchase a liquid test kit and set my mind on a TF100. Big disapointmend, nowhere to buy.
Does anyone succeeded in buying the TF-100 in the Netherlands?