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White powder and damp backyard

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White powder and damp backyard Ish 01-14-2008
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Posted by Ish on January 14, 2008, 9:18 am
Last week I noticed some white powder residue in my patio and along
the patio wall (one inch above the base). The backyard has been moist
for the last month with the sprinklers off. We did have a lot of
rain, but I think that is not the reason. I have checked the outside
water meter and there is no leakage (meter is not running when the
water is not turned inside the house).

There is no damp spot inside the house yet. I am seeking advice as to
who to call for an inspection or advice - should it be a plumber or
some other expert?

Any advice would be greatly appreciated.

Posted by Joseph Meehan on January 14, 2008, 9:55 am
What is the patio made of?

Are you saying you don't know why the ground is moist? Is the problem
the powder?

Just reading your message, I would guess the rain has caused the ground
to be dame, and some of the moisture is being drawn through the patio and
leaving that white powder, both of which would be normal. You might need to
wash the white powder off.

> Last week I noticed some white powder residue in my patio and along
> the patio wall (one inch above the base). The backyard has been moist
> for the last month with the sprinklers off. We did have a lot of
> rain, but I think that is not the reason. I have checked the outside
> water meter and there is no leakage (meter is not running when the
> water is not turned inside the house).
>
> There is no damp spot inside the house yet. I am seeking advice as to
> who to call for an inspection or advice - should it be a plumber or
> some other expert?
>
> Any advice would be greatly appreciated.


--
Joseph Meehan

Dia 's Muire duit




Posted by Ish on January 14, 2008, 10:51 am
wrote:
> =A0 =A0 What is the patio made of?
>
> =A0 =A0 Are you saying you don't know why the ground is moist? =A0Is the p=
roblem
> the powder?
>
> =A0 =A0 Just reading your message, I would guess the rain has caused the g=
round
> to be dame, and some of the moisture is being drawn through the patio and
> leaving that white powder, both of which would be normal. =A0You might nee=
d to
> wash the white powder off.
>
>
>
> > Last week I noticed some white powder residue in my patio and along
> > the patio wall (one inch above the base). =A0The backyard has been moist=

> > for the last month with the sprinklers off. =A0We did have a lot of
> > rain, but I think that is not the reason. =A0I have checked the outside
> > water meter and there is no leakage (meter is not running when the
> > water is not turned inside the house).
>
> > There is no damp spot inside the house yet. =A0I am seeking advice as to=

> > who to call for an inspection or advice - should it be a plumber or
> > some other expert?
>
> > Any advice would be greatly appreciated.
>
> --
> Joseph Meehan
>
> =A0Dia 's Muire duit

Thanks Joseph.
The patio is made of concrete and was there when we bought the house.
The rains have stopped for more than a week and the dampness level is
very high as compared to the previous 9 years of our stay in the
house.


Posted by Paul Oman on January 14, 2008, 11:34 am
Ish wrote:
> Last week I noticed some white powder residue in my patio and along
> the patio wall (one inch above the base). The backyard has been moist
> for the last month with the sprinklers off. We did have a lot of
> rain, but I think that is not the reason. I have checked the outside
> water meter and there is no leakage (meter is not running when the
> water is not turned inside the house).
>
> There is no damp spot inside the house yet. I am seeking advice as to
> who to call for an inspection or advice - should it be a plumber or
> some other expert?
>
> Any advice would be greatly appreciated.

the powder is mineral salts being deposited by water moving
through the cement and evaporating away.

there are some 'internal' concrete sealers that will reduce or
sloe the movement of the water through the cement - google "bio
vee seal'


Cheers,

Paul Oman 1/14/2008 11:34:27 AM

"If a family had two or fewer servants in the United States in
1900, census takers recorded the family as lower middle class."


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