Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
The 250V has a seat saver purge button lock, the same as the G260.
Sherwood SR series also have a floating seal, it seems to be very effective.sorry for the hijack, back to the g260.....
inline Regs with a pre dive could be thought of as a Venturi disrupter, the original D series used a wire arm to hold the lever (also pilot and Air 1) the new D 420 turns the asperator and increases spring pressure slightly.Interesting… on the older Scubapro models it is the Venturi switch that is labelled dive/pre-dive. On the D series it looks similar to what a cracking pressure adjustment dial would do? Is that right?
I agree, this sort of thing makes me nervous.It has to be a little difficult to engage or else you might accidentally engage it while diving. This would result in a pretty dramatic free flow.
For me, my personal opinion, nothing more, is that I would rather use 2nd stages where there is no possibility at all of the purge button locking in place. My seats last for years anyways, because I store them with the adjustment knob all the way out and I set them very lightly. Also, if I rebuild a 2nd stage and then know that I'm going to store it for a long time, it's very easy for me to simply give the orifice a 1/4 quarter turn counter clockwise. I just have to remember to set it back before using it.
how much is a service kit? ive heard it can be quite a bit!The true criminal act in all this isn't the absence of the feature, but the absolute highway robbery of the price of a service kit.
Swapping a seat should not cost you one of your children...
Around $25+/- IIRC.... The OEM seats (if you can get them) are something like $5-$8 each...how much is a service kit? ive heard it can be quite a bit!