2001 GTX RFI Water Control Valve

[oldbugger]

Hello.. I have read several threads in more than one form discussing the "adjustment" of the water flow regulator on the water box. Most of these very wisely point to the default "regulator valve is adjusted at the factory and should not be adjusted". However, I have a recently purchased ski from a previous owner that I have come to completely mistrust and want to make sure it is set properly. Anyone that can fill me in with certainty about the "proper factory setting" on this valve?
2001 GTX RFI 787