1
vote
1answer
141 views

How close is too close, when digging below foundation level?

I'm digging a drainage trench near my foundation, and have hit the bottom edge of that foundation. In this case it's a T style foundation at the edge of a slab, but elsewhere there's no slab. From ...
1
vote
2answers
209 views

Should I be concerned about foundation seepage and what to do about it?

We recently bought a 20 yr old home next to a lake in NC.. within a couple thousand feet. It doesn't rain incredibly often here but we've noticed when it does rain it pours 2-3 times the amount we ...
2
votes
1answer
402 views

Can I build a French drain with old concrete and brick instead of rock?

Can I use old pieces of concrete (broken up cinder block) and old brick instead of rocks in the construction of a French drain? I'm thinking of building a French drain that leads to a dry well to ...
6
votes
1answer
1k views

What is the best way to seal a French drain board due to high levels of radon?

The Radon level in my crawl space is above the threshold (~5.5) and the level in my basement is around 4. I'd like to install a radon mitigation fan that sucks air from the sump pump of a French ...
2
votes
1answer
2k views

What kind of filter fabric should I use for the curtain drain in my crawlspace?

I'm having a hard time finding appropriate filter fabric for my curtain drain in the crawl space. HD had some stuff but that's for gardening and may not be suitable. Also since their gardening ...
4
votes
1answer
1k views

How should I install a curtain drain in my crawl space?

Since I have wet areas in the crawl space, I have decided to dig a trench at the perimeter of my crawl space to take care of the water. This would also allow me to install rigid foam insulation on ...
14
votes
3answers
3k views

How do I build a French drain?

There's a shed near the side of the house with a roof that's pitched to shoot water at the house's foundation. That side of the house also has no gutters. There's a very slight grade to send water ...