Hi Heather, The Milwaukee controller setup is fairly straight forward and it sounds like you got that part down. The regulator is easy to. Leave your connections as they are, and turn off the tank valve and let the pressure run out. Then: 1) Turn the line pressure adjustment knob counterclockwise until it feels loose. 2) Leave the needle valve alone for now, and turn the tank valve on and start screwing the line pressure knob clockwise until the line pressure gauge reads about 20-25, plug the solenoid into a regular outlet that has power to start the gas flow and close the needle valve until you get the bubble rate you want If you have any questions, email me at: info@glass-gardens.com Troy Hendrickson Glass Gardens -----Original Message----- From: aga-member-bounces@thekrib.com [mailto:aga-member-bounces@thekrib.com]On Behalf Of Heather J Gladney Sent: Saturday, September 04, 2004 9:29 PM To: Aquatic Gardener's Association Subject: [SPAM] [AGA-Member] CO2 regulator question Dear pressurized CO2 system folks: Just got a 10 lb tank from the welding shop, from LFS got a Milwaukee pH meter, a cheap Chinese regulator combo (dual regulator, needle valve & solenoid) with no instructions in the box, and now I'm trying to work out how the adjust the regulator so it doesn't blow out my needle valve. The system is all connected and working all right (I checked with Snoop leak detector to be sure all the connections were all right). But when the pH meter kicks on, it blows out a lot of gas all at once. No trickling bubbles here! (Certainly not 6 little tiny bubbles per minute). I had assumed the regulator would be adjust about right, since it's hooked up in this combination, to start with. I'm not finding any info on the net about this Chinese item, either, though I might be able to get a friend to read the characters to pick up the name of the company that made it. I've turned the needle valve way down, but I'm a little concerned that the regulator should be doing the work that the needle valve is forced to control. And I don't know how to adjust the regulator safely! There's a nut on the top, but I've no idea which way to tweak it, or how far. I could turn off the pH meter and shut down the main tank valve and then adjust it with a pipe wrench, but I' like to check wit h you folks first. Current dial readings: tank has 75 psi or 1000 kg/cm2 out put to the needle valve is 6.5 liter/min I'm tempted to take it back (it'd be a hassle). Thanks for your time! _______________________________________________ AGA-Member mailing list AGA-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/aga-member --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.742 / Virus Database: 495 - Release Date: 8/19/04 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.742 / Virus Database: 495 - Release Date: 8/19/04 _______________________________________________ AGA-Member mailing list AGA-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/aga-member