I have been doing the diy co2 thing for about a year and I am about ready to graduate to compressed co2. I can get a charged 5lb tank in Winnipeg for $55 (cdn). What do you recommend for a low cost valve. I don't think I want a solenoid and I am not worried about getting the 'optimum' level of CO2. I just want 'some' co2 with less hassle than the yeast and at the lowest possible cost. Thanks in advance Bill