The values on my website are exactly what TB recommended on his Barr Report site. Comparing my figures and the ones in this article mine are slightly higher for KNO3.
This article's values:
KNO3 - 3/16 tsp
KH2PO4 - 1/16 tsp
Traces - 1/16 tsp
KNO3 - 1/4 tsp
KH2PO4 - 1/16 tsp...
EI doses plenty of potassium from potassium nitrate to reach a good tank target level of 20-30ppm. As lean dosing methods add much smaller amounts of potassium nitrate you will need to boost the potassium levels by adding potassium sulphate.
Have to agree with you on this Ed. There is no need to use PTFE tape on the thread between regulator and extinguisher as the O-ring forms the seal and not the thread. Indeed as suggested it could cause problems. Where PTFE tape is used is on the other connections such as solenoid and needle...