Zeagle--balanced Diaphragm vs. Flow-by piston

[sonicr1]

OK, i am a noob, been certified for a year and I am ready to start getting my gear together (sick of renting!!!!!). Anyhooooo I am looking into the Zeagle Envoy and Rezort. I was hoping someone could shed some light on the differances between balanced Diaphragm vs. Flow-by piston. I feel stupid asking the question because there is only a $20 price differance, so why not go with the Envoy??? I am leaning on the side of, well if I can save $20, great, instead of, well it's only $20 more.

Thanks-Bill

 

[Charlie99]

This thread should shed some light on the advantages/disadvantages of piston vs diaphram. http://www.scubaboard.com/showthread.php?t=132786

 

[sonicr1]

Craaaap, that link and the links in that link and the links in that link... no definitive answer!!! OK, Thanks-Charlie

 

[Charlie99]

Craaaap, that link and the links in that link and the links in that link... no definitive answer!!! OK, Thanks-Charlie

Well, that in itself kind of answers your question. A good reg is a good reg, independent of diaphram or piston.

You'll get the same non-answer if you were to ask the common question of "what's better, brand X or brand Y?" For that question you will get a hundred posts with two basic answers:
1. It doesn't really matter, and
2. MY reg is best!

 

[Quarrior]

OK, i am a noob, been certified for a year and I am ready to start getting my gear together (sick of renting!!!!!). Anyhooooo I am looking into the Zeagle Envoy and Rezort. I was hoping someone could shed some light on the differances between balanced Diaphragm vs. Flow-by piston. I feel stupid asking the question because there is only a $20 price differance, so why not go with the Envoy??? I am leaning on the side of, well if I can save $20, great, instead of, well it's only $20 more.

Thanks-Bill

Diaphram - No water gets in the first stage. The diaphram is acted upon by the surrounding water pressure, but does not enter the first stage of the regulator to do this. This type of regulator is generally "environmentally sealed" which you should check if you plan to dive in murcky or cold (below 50 degree F) water.

Piston - Open to the water around it. It also acted upon by the water pressue but is more likely to be affected by things in the water and cold temps.

I personally own 3 of the Zeagle DSIV (now known as DSV) regs with ZX second stages and ZX OCTOs, couldn't be happier.