Mine is 27 years old and still doing fine. The guy who had the house
first was from Louisiana, and always complaining that Baltimore was
too cold. I don't think that, but I still only use the AC 3 weeks a
year or less. I know age is a factor in itself, but lack of use must
make a big difference too.
You will be looking at a bunch of money to have an a/c company
disconnect the unit and move it off, then reconect it. How old is the
unit? I would figure out a way to do a patch job as others have
suggested and wait till the unit has to be replaced. If you do have it
done, and later it has to be replaced, you just wasted that money. We
use precast concrete slabs, as well as some that are like fiberglass
over foam. We use the precast ones where the ground is uneven and the
slab has to be partially elevated with bricks or blocks, and use the
others where the ground is level, or we can place the lightweight ones
over an existing slab if it is sound, but not high enough to meet code.
I used one of the plastic ones like Stormin mentioned when I instaled my
parents unit in 1995, and it is holding up fine. Got no idea why yours
is failing. If you really wanted to, you could probably raise your unit
just enough to get the old slab out, level the ground under it and
install a precast slab. You could get 2 pieces of angle iron long enough
to extend about a foot past either side of the unit, put one flat edge
under the legs with the other edge facing up and carefully raise it and
block it about an inch above the slab. If you are careful the copper
lines should have enough slack in them to move that much without any
problems. Good luck Larry BTW, I just bought a 36x36 precast slab a
couple of weeks ago. According to the counterman at the supply house, it
weighed 108 lb`It cost $20.48. Of course that price was wholesale, so
you may have to pay somewhat more retail, but it still should not be
I'm with those suggesting doing nothing. It doesn't look that bad to
me. Is there any indication that the unit is loose/moving on the base?
As long as the base is stable, not moving, the unit is level, I would
probably leave it alone.
If you want to fool with it, then I'd consider using some Trex decking
material to completely cover the concrete. The way the unit is sitting
on legs, it would be easy to slip that under it. I'd use construction
adhesive to fasten the Trex to the concrete, then use screws to fasten
the unit to the Trex. You might have to shorten the brackets unless
there is enough give in the tubing to allow the unit to come up the
thickness of the Trex.
btW, DOESN'T lifting the compressor eveen a half inch risk causeing a
leak in the pipes?
I think I'm bend-shy, because when I was 21, I twisted a copper water
pipe 10 degrees, just below a faucet, and a couple months later it
started to leak.
Another time, a friend had a metal shower stall out and was letting
the pipes move back and forth a couple inches at 4 feet high, and one
snapped, sending water all over the bathroom.
Is it 100 percent safe to lift the compressor even a half inch, that
is, no risk of causing a leak?
mm-- from looking at the OP's pictures, it looks like the lines have
plenty of slack the way they are run up to the attic, so the unit could
most likely be lifted up to an inch or so without much risk of damage--
IF done very carefully. Most residential a/c lines are soft copper with
silver soldered joints, whereas a lot of plumbing is rigid copper with
soft soldered joints. I have leveled a bunch of a/c units and(knock on
wood) have yet to cause a leak. Larry
On Sun, 10 Sep 2006 22:29:42 -0500, email@example.com (lp13-30) wrote:
That's encouraging. My AC pipes run only a foot to the wall. Do you
think that would be enough space to flex also? (I don't know why I
ask, since I'm still going to be too afraid to move it back two inches
at the end away from the house. Someday the thing will break, and the
installer can straighten it out when he replaces it.)
OTOH, sometimes I have reckless moments and I may get overwhelmed by
the desire to straighten it out.
BTW, I should have said that the shower pipe that snapped was iron.
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