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Plumbing Union/Coupling Question Robert11 01-27-2007
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Posted by Sacramento Dave on January 28, 2007, 10:44 am



> Hello all,
>
> Thanks for all the information, and time to help me out.
> Appreciate it.
>
> Just one quick follow-up, please:
>
> What type of Grease, or other lubricant, should the mating faces be
> lightly coated
> with prior to assembly ? Any reasons not to (water usage) ?
>
> Thanks,
> Bob
> --------------------------

I would use Rectorseal pipe dope it's just acting more like a lubricant .
Were ever the metal rubes or threads you want to coat. If you get to much on
it's just to wipe off after assembly. I don't know what the line is hooking
to but before you install a valve or whatever run some water threw the line
to get any debris out.



Real Goods Solar, Inc.
Posted by Harry K on January 28, 2007, 10:58 am




>
> > Hello all,
>
> > Thanks for all the information, and time to help me out.
> > Appreciate it.
>
> > Just one quick follow-up, please:
>
> > What type of Grease, or other lubricant, should the mating faces be
> > lightly coated
> > with prior to assembly ? Any reasons not to (water usage) ?
>
> > Thanks,
> > Bob
> > -------------------------- I would use Rectorseal pipe dope it's just acting
more like a lubricant .
> Were ever the metal rubes or threads you want to coat. If you get to much on
> it's just to wipe off after assembly. I don't know what the line is hooking
> to but before you install a valve or whatever run some water threw the line
> to get any debris out.

Just my experience here. I don't know what the _official_ stance is
on it.

I have _never_ applied any kind of pipe dope, lubricant or anything
else to the mating faces. On the threads, yes. The mating faces do
not slide across one another when intalling so don't need
'lubricant'. Sealer? Not in my experience. I have had leaks in just
about any type joint normally found in a house but never in a union.

Harry K


Posted by on January 29, 2007, 1:02 pm




>
>
>
>
>
>
> > > Hello all,
>
> > > Thanks for all the information, and time to help me out.
> > > Appreciate it.
>
> > > Just one quick follow-up, please:
>
> > > What type of Grease, or other lubricant, should the mating faces be
> > > lightly coated
> > > with prior to assembly ? Any reasons not to (water usage) ?
>
> > > Thanks,
> > > Bob
> > > -------------------------- I would use Rectorseal pipe dope it's just
acting more like a lubricant .
> > Were ever the metal rubes or threads you want to coat. If you get to much on
> > it's just to wipe off after assembly. I don't know what the line is hooking
> > to but before you install a valve or whatever run some water threw the line
> > to get any debris out.Just my experience here. I don't know what the
_official_ stance is
> on it.
>
> I have _never_ applied any kind of pipe dope, lubricant or anything
> else to the mating faces. On the threads, yes. The mating faces do
> not slide across one another when intalling so don't need
> 'lubricant'. Sealer? Not in my experience. I have had leaks in just
> about any type joint normally found in a house but never in a union.
>
> Harry K- Hide quoted text -- Show quoted text -


Agree. I'd just put some pipe dope on the threads.


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