Subject: What is the process squid use when swim by using their siphons as jets?

I have read that squid have two ways of swiming-one by waving their fins,one by 
squirting water out of their siphons.I know they swim by using their fins most 
of the time,it being easier.I don't know how they would make their other swiming 
mode work.I know that their siphon is the outlet,but I do not know how their jet 
is supplied with water.I also don't know what musclular process the squid use to 
expel this water.Plese tell me how squid expel water and how they use ther 
muscles to do this.Thank you.

Re: What is the process squid use when swim by using their siphons as jets?