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Exterior overflow PVC pipes discoloring

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Exterior overflow PVC pipes discoloring rickrocklin 10-14-2007
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Posted by on October 14, 2007, 6:33 pm
We recently replaced our A/C compressor and after a few weeks have
noticed the exterior PVC overflow pipes are dripping more frequently
and discoloring the wall around the pipes. Does anyone know what is
causing this?


Posted by Edwin Pawlowski on October 14, 2007, 9:14 pm

> We recently replaced our A/C compressor and after a few weeks have
> noticed the exterior PVC overflow pipes are dripping more frequently
> and discoloring the wall around the pipes. Does anyone know what is
> causing this?

The additional condensation is probably from a coil that is cooling more and
removing more humidity fromt he air.

The stains are caused by gunk that the water is picking up in the drain pan
and the coils. Have you ever cleaned them?
>



Posted by Harry K on October 14, 2007, 9:24 pm
>
>
> > We recently replaced our A/C compressor and after a few weeks have
> > noticed the exterior PVC overflow pipes are dripping more frequently
> > and discoloring the wall around the pipes. Does anyone know what is
> > causing this?
>
> The additional condensation is probably from a coil that is cooling more and
> removing more humidity fromt he air.
>
> The stains are caused by gunk that the water is picking up in the drain pan
> and the coils. Have you ever cleaned them?
>
>
>
> - Hide quoted text -
>
> - Show quoted text -

Even clean water dripping on the siding will collect dusst and dirt.
The cure is to fix it so it doesn't hit the wall. Of course cleaning
the pan is a needed maintenance item anyhow.

Harry K


Posted by on October 14, 2007, 9:32 pm
>
>
> > We recently replaced our A/C compressor and after a few weeks have
> > noticed the exterior PVC overflow pipes are dripping more frequently
> > and discoloring the wall around the pipes. Does anyone know what is
> > causing this?
>
> The additional condensation is probably from a coil that is cooling more and
> removing more humidity fromt he air.
>
> The stains are caused by gunk that the water is picking up in the drain pan
> and the coils. Have you ever cleaned them?
>
>
>
> - Hide quoted text -
>
> - Show quoted text -

No I have never cleaned them or the drain pan. The drain pan would be
found in the ceiling unit right? Not the outside unit? Thank you.


Posted by Edwin Pawlowski on October 14, 2007, 9:47 pm

>
> No I have never cleaned them or the drain pan. The drain pan would be
> found in the ceiling unit right? Not the outside unit? Thank you.
>

Correct, it is where the moisture from the coils drip into. . Flush it with
water and some sort of non-sudsing cleaner. Some bleach won't hurt. You
may want to try putting something down the tubing, like a thin brush on a
long wire to ream it out.

Condensate pans are not often seen and thus not thought about until there is
a problem. Give it a flush every spring and again after the AC season.



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