superstar
Contributor
I found an effective way to restore the piston bore in a corroded regulator body. I took an automotive break cylinder flex-hone and used it to hone the bore of the regulator body just like you would hone out a rear break wheel cylinder on your car. It remove all the pitting and gave the bore a fine cross hatch finish. After a cleaning and new o-rings the reg works perfect. I was able to restore an old Aquarius wall hanger into a fine useable reg.