What I did was put the 3/4 inch main loop on top of the rafters about a foot
and a half in from the side walls. Then the 1/2 inch
drop goes up from the main loop, over the foot and a half, and then down thru
the top plate of the wall. This foot and a half allows
the walls, the garage and the copper to expand, contract, move, settle, etc.
without ripping each other apart.
I may be solving a problem that I did not have [i.e. the ripping each other
apart], but thought I'd pass it on anyway.
If your walls are insulated and/or covered with sheetrock, etc., fixing a leak
in the wall is an adventure.
And putting the drain on the end of the drop is interesting. Normally the drop
would come down, then a T with the air fitting on the
stem and the drain on the other straight leg. But the straight leg would be in
the wall so the drain would be in the wall so ...
The obvious, though in my opinion sub-optimal solution was the drop comes down
to a 90, then thru the sheetrock, then to a T with
the air fitting on the straight leg and the drain on the stem leg. Which is why
I have a condenser and a dryer at the tank - to
minimize the amount of moisture that gets into the lines in the first place,
giving my sub-optimal wall drains as little to do as
possible.
Arvid
> that'd be pretty cool too. in fact, I kinda like that better, and it'd
>really be the same thing, you're just moving the supply
> loop above the wall instead of through it. I'd still wanna have the drops
>come off from the top of the pipe and have a loop, I
> could just do it in the (greater) volume above the walls themselves. and
>with that method you could use almost any diameter pipe
> you wanted so long as you could support the weight of the pipe itself. yeah,
>that's pretty cool. thanks mark.
>> I personally hate punching more holes in studs than are absolutely required.
>> What about running a main line up in the ceiling, come through the top plate
>> and into the walls as vertical drops where you'll have outlets. Less
>> efficient (but: more volume!!) use of piping, but your walls will remain at
>> full strength and when you go and hang that shelf you'll have a reduced
>> chance of hitting air.
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