We arrange a drainage system like this around the outside of the footings of our basements to carry any water which percolates down the outside of the basement walls usually into storm drains or under the footing and into a sump in the basement where a pump is installed to pump the water up and away. It is often used around the footings of slab construction too. You should also do what you can to grade the surface ground away from the building.
If the drain is a foot and a half or more below where traffic is driving it should not be crushed. You might do as well just to excavate along the outside edge of the building a little below the level of the floor and lay the weeping tile in the bottom of the trench with a slope then backfill with clean gravel and, depending on the elevations, the end of the tile can be just left to dribble out onto the ground. make sure too that your eaves troughs aren't adding to the water load. It is a little difficult without really thoroughly understanding the ground but the principle is certainly sound. ----- Original Message ----- From: Kevin Doucet To: [email protected] Sent: Tuesday, August 26, 2008 7:50 PM Subject: [BlindHandyMan] need help with another water problem >When I moved in my current house I noticed dampness on the back wall >of the garage. Later I realized when it rained really hard or >persistently, water was standing behind the garage and moistening >the wall. Well later, I had a 20 by 20 sun room build behind the >garage. I assumed, wrongly, this would alleviate my water problem. >Now when it rains hard or persistently, I get water in the end of >the room at precisely the same location of the previous problem, >only now it is along the rear of the room as well as along the side >adjacent. So far I have not finished that room so the problem is not >as bad as it could be. I blame this problem on the fact that because just behind my new room is a rather steep grade of about 5 or 6 feet high. Now what I would like to do is channel this water about 10 or 15 feet to the other side of my driveway ware there is a ditch which would take the offending water to the street drain. I considered digging a trench behind the room at the end ware the problem is and over to the ditch at the other side of my drive, placing some of the 4" perforated plastic drain pipe in this ditch. Below is a bit of text I took from a guide to get rid of standing water in a yard. Do you think this approach will work for my situation and do you think I could allow vehicles to drive over this berried pipe with out damage to the pipe? Getting rid of standing water in your yard. Firstbuy some 4" perforated plastic drain pipe. The best kind for this purpose is the flexible kind that comes in 100' rolls. This type of drain pipe has small slits all around the pipe. These slits allow water to enter the pipe so it can be carried away. Just dig a trench from the center of the low area you are trying to drain, to the point that you intend to drain it to. Using a simple line level you can set up a string over top of the trench to make sure that your pipe runs down hill all the way. A line level is a very small level that is designed to attach to a string. Any hardware stores sells them for just a couple of dollars. Set the string up so it is level, then measure from the string to the bottom of your trench to make sure you have constant fall. You should have 6" fall for every 100' of pipe. The highest point is going to be the area that you are trying to drain, so you only want your pipe deep enough at this point so it can be covered with soil. Once the trench is dug just lay the pipe in. At the highest end of the pipe you'll need to insert a strainer into the end of the pipe to keep soil from entering the pipe. Cover the pipe with some washed stone, and then backfill the trench with soil. The washed stone creates a void around the pipe so that the water can find it's way into the pipe. Washed stone is usually inexpensive stone that has been washed so it is clean and free of mud. The only part of the pipe that needs to be exposed is the low end, where the water exits the pipe. Do not put a strainer in that end. Thanks. Kevin Doucet [EMAIL PROTECTED] confuse as says Blind man with unmarked forehead has large belly! [Non-text portions of this message have been removed]
