The impact of tubing sizes

[gabe]

Agreed. My personal preference is for no thinner than 3/32" walls (or 2.5mm), for just that reason. Also helps for turning radius too. I didn't state that in my OP though, but I am aware of tubing evaporation/porosity issues, and turning radius issues, for thin walled tubing.

I understand Stew. Please also appreciate that thru this conversation I am also addressing the members of this forum. People need to clearly understand how to use push-in fittings, and the way things go, my warning will be lost and push-ins will become the new thing to do, which more often than not ends up on my lap as in "why don't you make a block with built-in push-ins Gabe".. Been there, done that.. You know what I mean?

So let me be clear one more time (OK call me senile): Push-ins are not designed for low pressure environments. If you use them, be prepared to watch fluid levels often.

BTW Happy Father's Day to all the Dad's in this forum..