Plumbing Under Raised Floor

Using the dimensions on the floor plan measure from the outside of the foundation walls or slab.

Plumbing under raised floor.

Raising a bathroom floor is a large time consuming project. Here s how to connect the plumbing under your bathroom sink. Raising any floor a small distance is just a matter of making the subfloor thicker. The center of the lav s drain is located 18 approximately above the finished floor.

The raised drainage platform was a necessity because the main drain the big black one on the right in the first picture did not have a place where we could connect the bathroom drainage to the rest of the house s drainage. Now i ve cut up the concrete floor had a plumber run pipes re filled with bagged concrete and leveled the cutout with self leveling cement. Diameter vertical pipe that runs into the basement floor. In a house with a raised floor system all mechanical systems are readily visible and almost always accessible.

There was no headroom. The two major plumbing codes in the united states is the ipc international plumbing code and the upc. He considers the 1994 law mandating low flow 1 6 gallon toilets and 2 5 gallon per minute faucets and showerheads a step in the right. First locate the main stack the large 3 or 4 in.

We have to change the mind set that we can just turn on the water and let it run like niagara falls richard says. This can be done by adding more osb or by placing tile. How to repair plumbing under a foundation. There are two general types of raised floors.

So before you can do any real planning you have to find that line. From there the pipe runs under the floor and out to the city sewage system under the street. Houses built on slabs at the very least have the plumbing drainage system buried under the slab. Shifting ground soil whether from an earthquake or less drastic sources can cause.

Pipes can leak under a foundation for a variety of reasons. The photo below shows a sink drain hot water line and cold water line at a stud wall on the outer edge of the floor slab. So instead of breaking concrete we built the floor up to accommodate the plumbing. Also notice the drain is centered right in the middle of this 30 inch vanity.

The bathroom floor was previously raised about 10 extra inches relative to the rest of the floor for drain pipes that were run above the slab. Take your floor plan and measuring tape and check the location of every pipe. There are a number of ways to raise a bathroom floor depending on how much it needs to be raised. In some instances heating ducts and some electrical cables are also buried.