What's considered cold water?
Also, does anyone know the difference between the G250V and the G250HP? Is the V the same as the old G250 design?
Hobo,
Here is a link to a thread you will really like, don't be fooled by the title.
http://www.scubaboard.com/forums/regulators/247021-what-difference-between-sp-g250v-s600.html