Marelon Seacock Rotation

Mar 20, 2012
3,983
Cal 34-III, MacGregor 25 Salem, Oregon
That could work fine, I was locked into thinking the elbow needed tightened down all the way.... What sealing compound should I use on the elbow to secure and seal it half a turn before tight?

BTW, I've only gone hand tight so not too much risk of breaking anything...
almost any of the stuff that is used on gas line fittings... like you can get at the hardware store.... it is thick when it goes on, and in time the carriers will evaporate out a little and it will get even thicker and will set the fitting so it will take a wrench to remove it in a few months.

i would steer away from the liguid teflon as it isnt as thick...
 
Dec 2, 2003
1,637
Hunter 376 Warsash, England --
In my school summer holidays many, many years ago, and when I was working as a plumber's mate, it was our standard practice to get a fitting tight and at the correct orientation was to use a "back nut". This is a thin nut you wind on to the stationary fitting to begin with. Then coat the male thread of the fitting liberally with sealant and screw the other one on and to the required angle. Then wind the back nut back until it locked against it. This way the elbow should be sealed AND resist turning and so stay sealed.
All that was in 1953. Things might have changed since then though!.
Regards.
 
Feb 26, 2004
23,047
Catalina 34 224 Maple Bay, BC, Canada
Stu, I think I will have to find out if my be type 93 seacocks still have this issue. Uggg.
Gary, nmot a bad idea to check, but really only a warning to not mess with the handle of those valves. If you don't touch it, it's just fine.