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Old 03-03-2010, 07:34 PM   #31
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At a crossroads in my basement project - waterproofing help needed


My house is from the 50's (stream on the side of the property)
Original drain system below the basement floor
4 pipes that ruin into the sump pit

1) One 4" that looks like it runs thru the middle of the floor - possibly toi the far corner
2) One 3" pipe that looks like it runs along the back wall
3) One 3" pipe that runs towards the front wall & maybe along it ?
4) One 2" pipe that runs along the near short side wall
I do not believe they are all tied together as I only get most of the water from #1 & #3

The back wall now has a sunroom that sheds water further out from the house
The near side wall has a new garage foundation/roof in that sheds water further away
So it makes sense that these 2 pipes have very little water now

Changes I made:
My sump pump now pumps water 40' away from the house
New additions drain water further away w/new roofs
Front downspout goes into a drainage pipe that leads 15' away from the house
Side downspout goes further away from the house
Back downspout goes into same drainage system as the sump pump - goes 40' away
Regraded side yard to shed water 3' away from the house

1st 3 years sump pump ran every Spring quite a bit
Now it hardly runs at all....I actually kick it on myself when we have heavy rain fills the sump pump some just as a test
It will run for ~12 minutes at a time now & pumps out about 600g of water

I don't know who built it, but they knew what they were doing

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Old 04-16-2010, 05:44 PM   #32
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At a crossroads in my basement project - waterproofing help needed


I spent 20 years helping people with just your predicament. Also worked in mold as well as structural issues.
By now you know to fix the obvious, (downspouts and run-off) -- after that a lot depends on your expectations. There are several ways to learn how serious the problem is, how likely you'll get satisfaction, how to protect your investment, and how to decide when and how to finish your space.

It's a bit much to cover here, but if you're still kicking this around we could likely come to some best strategy in a 20 minute conversation.

Meantime, hang in there, ......be glad your beach property is not wondering how to fend off rising sea level....

Dave
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Old 04-16-2010, 07:03 PM   #33
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At a crossroads in my basement project - waterproofing help needed


Quote:
Originally Posted by bound2see View Post
I spent 20 years helping people with just your predicament. Also worked in mold as well as structural issues.
By now you know to fix the obvious, (downspouts and run-off) -- after that a lot depends on your expectations. There are several ways to learn how serious the problem is, how likely you'll get satisfaction, how to protect your investment, and how to decide when and how to finish your space.

It's a bit much to cover here, but if you're still kicking this around we could likely come to some best strategy in a 20 minute conversation.

Meantime, hang in there, ......be glad your beach property is not wondering how to fend off rising sea level....

Dave
The basement is all cleaned up now and I just have to decide if I want to waterproof it or not. I told myself I wasn't going to make the decision this year, but I will likely start getting quotes soon.

I am definitely still considering this, just haven't decided what route to go. It's nice now having the extra 700SF, would be nice to use it year-round.
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Old 07-19-2010, 02:45 PM   #34
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At a crossroads in my basement project - waterproofing help needed


Well, I had it done! I went with an INTERIOR perimeter system, similar to Basement Systems method, only this contractor put the corrugated drain tile UNDER the footing. Sump pump with battery back up, too.

Crew left an absolute MESS and my walls and stairs will have to be repainted. Hopefully the work below ground wasn't as sloppy. I just had it done this week and no major rains thus far, so way too early to tell if anything's amiss. I plan on coming back into this thread and updating with my success/failure of this system. Wish me luck!
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Old 10-27-2010, 10:21 PM   #35
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At a crossroads in my basement project - waterproofing help needed


Well, three months in and no problems. I plan on checking back in here during the spring when we've had a ton of rain. So far, so good.

Hope my experience can help someone else make a decision (or not).

Cost for subfloor basement "waterproofing" for 720SF was $4300. I have a feeling I could have bartered, but I'm not the bartering sort.
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Old 10-28-2010, 03:01 AM   #36
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At a crossroads in my basement project - waterproofing help needed


thanks for updating us

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