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Posted by Gritz_1 on March 30, 2008, 2:59 pm
We have a bi-level home on a hill; recently the garage, which is about
6' under ground, has been taking on water after a heavy storm. The
house is on a slope, and we know that hydrostatic pressure is the
culprit. We asked 4 contractors for ideas/bids and all suggested a
French drain-sump pump set-up, which seems like the correct way to go.
The sticking point is this; the garage is a 2 car, divided by a
cinderblock, load bearing wall. One contractor says he can just go
through that wall, and around the perimeter of the garage. This makes
the job much less expensive, instead of going around 6 walls with the
drain, he is going around 3, so the linear footage is much smaller. He
says, the hole that would be cut through the load bearing wall is
insignificant, and will be recemented anyway. I tend to agree with
him after thinking about it, but I do not want to wake up with a
collapsed/cracked wall one day! I would love to hear everyone's
opnions.
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Posted by Norminn on March 30, 2008, 4:04 pm
Gritz_1 wrote:
>We have a bi-level home on a hill; recently the garage, which is about
>6' under ground, has been taking on water after a heavy storm. The
>house is on a slope, and we know that hydrostatic pressure is the
>culprit. We asked 4 contractors for ideas/bids and all suggested a
>French drain-sump pump set-up, which seems like the correct way to go.
>The sticking point is this; the garage is a 2 car, divided by a
>cinderblock, load bearing wall. One contractor says he can just go
>through that wall, and around the perimeter of the garage. This makes
>the job much less expensive, instead of going around 6 walls with the
>drain, he is going around 3, so the linear footage is much smaller. He
>says, the hole that would be cut through the load bearing wall is
>insignificant, and will be recemented anyway. I tend to agree with
>him after thinking about it, but I do not want to wake up with a
>collapsed/cracked wall one day! I would love to hear everyone's
>opnions.
>
>
How is the garage situated in relation to the rest of the house? House
in relation to slope?
I don't understand the 6 walls. If uphill is at the back of the garage,
then it would seem
that a drain across that wall would keep the water out of the garage. I
know I'm missing
something :o)
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Posted by Gritz_1 on March 30, 2008, 7:07 pm
> Gritz_1 wrote:
> >We have a bi-level home on a hill; recently the garage, which is about
> >6' under ground, has been taking on water after a heavy storm. The
> >house is on a slope, and we know that hydrostatic pressure is the
> >culprit. We asked 4 contractors for ideas/bids and all suggested a
> >French drain-sump pump set-up, which seems like the correct way to go.
> >The sticking point is this; the garage is a 2 car, divided by a
> >cinderblock, load bearing wall. One contractor says he can just go
> >through that wall, and around the perimeter of the garage. This makes
> >the job much less expensive, instead of going around 6 walls with the
> >drain, he is going around 3, so the linear footage is much smaller. He
> >says, the hole that would be cut through the load bearing wall is
> >insignificant, and will be recemented anyway. =A0I tend to agree with
> >him after thinking about it, but I do not want to wake up with a
> >collapsed/cracked wall one day! I would love to hear everyone's
> >opnions.
>
> How is the garage situated in relation to the rest of the house? =A0House
> in relation to slope?
> I don't understand the 6 walls. =A0If uphill is at the back of the garage,=
> then it would seem
> that a drain across that wall would keep the water out of the garage. =A0I=
> know I'm missing
> something :o)- Hide quoted text -
>
> - Show quoted text -
Yes, tough to explain without picticures!
Where the water problem occurs is at the back of the house/garage. We
sit on a hill. The entire property slopes
down to the street. The garage is on a slab 8" below the slab that
leads to house. No problem with water on that
level. The garage has a slight slope that tilts toward the the back of
the house, not towards the garage doors.
You are not missing anything. Drain across the back wall is
absolutetly correct. The load bearing wall I mentiond intersects the
back wall.
What the contractors all said, (in unison, I might add)is that the
other walls need drains as well.
If you were looking from above, left wall is an outside wall, so that
would kind of make sense to me.
The one contarctor, as I mentioed, just said, do the ouside wall, back
wall, and 5' up the inside wall.
Are you saying the back wall drain wouldbe sufficient? It's really not
a a lot of water that we get, and it's sporadic at best.
The "6" walls come from doing the left, back in garage 1, up the
center (LB wall), down the LB wall, back in garage 2 and 5' of the
inside wall!
Thanks for the input.
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Posted by hallerb@aol.com on March 30, 2008, 7:28 pm
if your asking about a 2 or 3 inch drain line thru a concrete load
bearing wall thats common and wouldnt effect the wall strength.
around here interior french drains between sides of load bearing walls
are dug under the footer. its no trouble water finds its own level.
you should try for a gravity drain to daylight if at all possible, so
power outages and pump failures never can cause a flood.........
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Posted by Norminn on April 3, 2008, 12:04 pm
clipped
>Yes, tough to explain without picticures!
>Where the water problem occurs is at the back of the house/garage. We
>sit on a hill. The entire property slopes
>down to the street. The garage is on a slab 8" below the slab that
>leads to house. No problem with water on that
>level. The garage has a slight slope that tilts toward the the back of
>the house, not towards the garage doors.
>You are not missing anything. Drain across the back wall is
>absolutetly correct. The load bearing wall I mentiond intersects the
>back wall.
>What the contractors all said, (in unison, I might add)is that the
>other walls need drains as well.
>If you were looking from above, left wall is an outside wall, so that
>would kind of make sense to me.
>The one contarctor, as I mentioed, just said, do the ouside wall, back
>wall, and 5' up the inside wall.
>Are you saying the back wall drain wouldbe sufficient? It's really not
>a a lot of water that we get, and it's sporadic at best.
>
>
No......I don't know enough to tell you what is right or wrong. My
thought is this: the problem is
with heavy rain and is sporadic. That suggests to me that the slope is
bad and you are getting runoff.
not groundwater. If that is the case, then stopping or diverting the
water so it runs away from the garage
might cure the problem and, at worst, just require a french drain across
back of garage to........? In conjunction
with that, a little grading and/or addition of soil across the back to
minimize what reaches the area in back
of the garage..
>The "6" walls come from doing the left, back in garage 1, up the
>center (LB wall), down the LB wall, back in garage 2 and 5' of the
>inside wall!
>Thanks for the input.
>
>
Sounds like something that looks great on paper :o) Where is the water
supposed to wind after
it is collected?
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