S S [email protected] Feb 12, 2014 Hello, I am also a welder and wanting to add O2 to the root zone. Can you please contact me so we can talk intelligently about this compare to the responses you're getting? Thank you. Scott
Hello, I am also a welder and wanting to add O2 to the root zone. Can you please contact me so we can talk intelligently about this compare to the responses you're getting? Thank you. Scott
