Often asked: Installing Channel Drain In Existing Concrete?

How do you install a drain in an existing concrete floor?

Installing a floor drain into an existing concrete slab will require some sawing of the concrete. You can hire someone to saw a trench in the concrete floor from where the drain will be to where the drain pipe will exit the building. They usually remove the sawed concrete and get it out of the building for you.

How much does it cost to install a channel drain?

Installation Cost Estimates Per Linear Foot

Type Cost Per Linear Foot
Interior French $45-$60
Trench / Channel $30-$150
Underground Downspouts $9
Yard Inlets $8-$10

How do you keep water from pooling on concrete?

Where the water tends to collect, cut out a sloping channel in the concrete to direct the water away, filling it with decorative stone or gravel. Instead of gravel, you can also have a trench or channel drain made of metal installed.

Can I drill holes in concrete for drainage?

You will be trying to drain hundreds of square inches of surface area into a (maybe) 9 – 12 square inch hole. That small of an area opening will quickly saturate the soil and be of little or no use. To answer your question directly: Yes, it is easy to drill through concrete with the right equipment.

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Does a garage floor drain need a trap?

Re: Floor Drains do they require trap venting? If the drain is just going to terminate outside, you might consider a trap just to stop air from blowing in and out of your building through the drains. Not an issue into a closed dry well, but might be if just flowing into a pit.

Can I install a French drain myself?

A French drain is a trench filled with a perforated pipe and gravel that allows water to drain naturally from your yard. Depending on the size of your yard and the scale of your drainage issue, you can purchase the pipes and equipment to create a French drain yourself.

What is the difference between a French drain and a trench drain?

The terms rhyme, they both involve trenches, and French drains aren’t really French. The defining difference is very simple, however: Trench drains are surface structures while French drains are subsurface ones. Let’s look at how they both work to keep water flowing offsite.

Does homeowners insurance cover French drains?

Most standard home insurance (HO3) policies do not cover French drains unless you have a French drain rider. Like other pipelines, French drains direct surface water away from your home, and they are not part of your standard home insurance.

Can standing water damage concrete?

Concrete slabs are very porous. This means standing water can easily fill in pores on the surface and eventually break down the concrete. As a result, the concrete may crack, move, or even settle.

How do you fix low spots in concrete?

If you need to level low spots on your floor, use a concrete patching compound. The patching compound also works well to repair any cracks that formed when the concrete settled. You don’t need many tools for this project, but you do need to wear protective gear for your eyes and hands. Work in a well-ventilated area.

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Do I need a shower pan liner on concrete floor?

JRC3 Member. It will need to be lined or it will wick into the slab and studding. The liner also makes the walls around the pan water-tight, that’s why the liner normally goes up at least 3″ above the pan behind the tile and backer material. Moisture gets behind the wall tile and is eventually caught by the liner.

Can a shower floor be concrete?

Not only are concrete shower walls and floors practical and easy to clean, with no grout joints where ugly mold and mildew can grow, they also permit unlimited design options. A concrete wall and floor overlay was hand applied right over this old tile shower to give it a completely grout-free decorative surface.

How do you Slope a shower floor for a linear drain?


All wet (shower) areas must have a sloped floor towards the outlet at ¼” per foot (consult local codes for your area). Traditionally this is a 4-way slope towards the center of the wet area significantly limiting design options and tile size choice.

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