Hello,
after some "research" and getting confused with contradictory information i decide to ask the experts. (also sorry if my english is not perfect,
I'm looking for a first stage (second stagee is decided) and I doubt between mk17 and mk25.
One is membrane and another piston, I had the impression (read somewhere) that membrane was better for cold water. But my LDS laught when I mentioned it, telling me that piston (and not isolated chamber) was better.
In any case, he told me that both are good for cold water and is not pushing for one or the other.
I dive in the Europeans lakes (currently aroud 4C or 40F) and plan to dive some ice (probably next winter) I will also dive in warmer waters during holidayss, but those are short
I'm not only looking for some advice, but if someone can provide clarification about the membrane/piston and closed chambre (links literature ..) I'd be grateful .
thanks
after some "research" and getting confused with contradictory information i decide to ask the experts. (also sorry if my english is not perfect,
I'm looking for a first stage (second stagee is decided) and I doubt between mk17 and mk25.
One is membrane and another piston, I had the impression (read somewhere) that membrane was better for cold water. But my LDS laught when I mentioned it, telling me that piston (and not isolated chamber) was better.
In any case, he told me that both are good for cold water and is not pushing for one or the other.
I dive in the Europeans lakes (currently aroud 4C or 40F) and plan to dive some ice (probably next winter) I will also dive in warmer waters during holidayss, but those are short
I'm not only looking for some advice, but if someone can provide clarification about the membrane/piston and closed chambre (links literature ..) I'd be grateful .
thanks