Jim Fosness

05:56PM | 05/13/03
Member Since: 05/12/03
6 lifetime posts
I am trying to install a sump pump. I have tile around the house which drains into the sewer line. Obviously this is illegal. I believe it was installed this way when my house was built in '64.

The problems I am having are:
1. After I cut away a section of my basement floor and drop my tank in, how do I connect to the existing tile? I am putting the tank close enough to reach the sewer pipe opening, thus close enough to the tile pipe, but where do I go from there? Unfortunately, it looks like the opening in the sewer line is square instead of round such as PVC.

2. When I put in my tank or catch basin, how far down do I need to put?

3. Finally, I have heard that I need to drill a few holes in the bottom and sides of the tank. Is this true? How many and how big of holes do I drill?

plumber Tom

06:56PM | 05/15/03
Member Since: 05/10/03
810 lifetime posts
I will tell you my thoughts / opinions on basement waterproofing.An inside system (french drain) consists of piping / tiles placed all along the inside perimeter of all 4 walls. Water that runs up from the foundation and enters your basement, is channeled into the system and directed to the sump pit. When the water level exceeds the pumps float level, it is then pumped out.Depending on your local code, it can be discharged into the main house drain (sewer) or to the exterior of your home. A typical French drain system appeals to most homeowners, because it's so much cheaper then to excavate the outside of the home. To give you an example, A typical 140' basement, would cost anywhere from $3,400.00 to 4,800.00. A good basement waterproofing company, normally completes this job in 1 day. It sounds like you need a new system from your post. The interior of your basement is jackhammered approx 8 to 12 inches from the wall. A trench is dug , and 3 inch perforated pipe is installed in the trench. If you have cinder block walls, 2 holes are drilled in each block for drainage into the system. These are known as "bleeder holes". The trench then gets covered with loose stone. The stone gets tamped down, and then your floor is re-cemented. The pipe that was previously installed is graded to the crock (sump pit) This is a good method, because no water actually gets onto the basement floor. Get a few estimates from waterproofing companies. Ask your neighbors if they have this type of system. The good companies will offer a lifetime guarantee, that is transferable to the next homeowner.


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