SylvanLMP
HJ. Bungie most lightly meant the KNUCKLE cleaner that is a stainless steel brush INSIDE a round plastic disc. The 2′ Bungie posted must have meant to be 2″
With this cleaner all you do is push this disc over the tubing to be cleaned and make one full rotation 360 Degrees and that would clean the outside of the piping. Then you have this side attachment that is nothing more than a regular wire brush to remove the oxide from the internal part of the fitting Joint. FORGET what Bungie posted THINK of what Bungie Meant.
At least Bungie had the right idea instead of pushing an acid type self cleaning flux.
HJ PLEASE try not to be so critical of other plumbers. Please take your chill pill. By the way WHEN Brazing S. G. Flagg flow fittings YOU would not only clean the outside of the fittings BUT Put lots of flux on it so it doesn’t oxidize from the Oxyacetylene flame of 5,700 DEGREE F. The flux acts as a temperature guide as @ 212 Deg F the water boils off @ 800-950 Deg. F the flux turns to a white powder Around 1,000 degrees the Flux turns into what appears a liquid again and @ 1,200-1,900 Your ready to apply the filler rod BUT hey your great so you dont need the flux like EVERY OTHER CERTIFIED Brazer would use.
The T. P copper fittings had better be well fluxed inside and outside if you wanted a professional looking Joint. (Other wise the silver/ filler metal turns completly black)
Another case where you CLEAN the outside and inside of “plumbing” piping is lead wiping to a brass ferrule for better WETTING action for capillary atraction/action of the solder. Hey keep on trying guy. Some day you may get it right
Ah the joys of playing plumber
