Ideas for garage drains

[texbaylea]

The units I bought were about 2' in length with trough and grate together. I don't remember the price but I don't remember them as being too costly. They have a tongue and groove joint and available end covers. Each grate is held in by 4 screws. Be sure and glue the joints, we did not and there was some shifting when the slab was poured.

Vernon

 

[texbaylea]

The units I bought were about 2' in length with trough and grate together. I don't remember the price but I don't remember them as being too costly. They have a tongue and groove joint and available end covers. Each grate is held in by 4 screws. Be sure and glue the joints, we did not and there was some shifting when the slab was poured.

Vernon

 

[Builder]

</font><font color="blue" class="small">( I am building a new house with an attached 30'x30' garage. It has 3 stalls, and two doors (an 8' and a 16'). We have already set up drain pipe for 3 drains. We aren't pouring for a few weeks so I have a chance to make some mods.

What we have ready now are the white 9 inch or so square drains with the round cover that have a bunch of 1/2 inch holes around its perimeter. People with experience with these say they aren't great especially if you don't have a real good floor taper to the drain, which I worry about with three of them. Like the concrete guy said 'this will be a roller coaster'. That tells me theres is a slim chance the floor will be sloped right for all of them.
Here's the Spec Sheet for what we have now.

So what I'd like to do is have a trough about 15' long, parallel to the garage door wall, centered in the garage. Then I will have a grate made for the void.

One question is how do I have void created when they pour? I could fix a 2x6 at the level I want, but I need to create the perimeter lip to catch the sediment.

What I'd really like is a pre made metal trough with the sediment catch and grate all built in but I can't seem to find anything like that.

Suggestions please...
)</font>

Like the members said above, it might be best to just slope the garage floor out to the driveway instead of floor drains, unless you have a driveway that slopes towards the garage making it impossible to shed water away from the garage.
The "physical" reason is because they add cost to the job that a simple downward slope could overcome. The concrete is rarely poured perfect enough to allow the whole slab to drain without a puddle here and there.
The "red tape" reason is that I've had personal experience with one building inspector failing a garage floor with drains because he said the township & EPA are afraid you'll pour motor oil, chemicals, etc. down the drain and contaminate the water table. I'm not saying YOU will, but that's what they say.

What you might want to consider is a horizontal drain in your concrete apron, just outside the door so you can catch runoff from entering the garage and not be subject to the scrutiny given to the interior drain.

 

[Builder]

</font><font color="blue" class="small">( I am building a new house with an attached 30'x30' garage. It has 3 stalls, and two doors (an 8' and a 16'). We have already set up drain pipe for 3 drains. We aren't pouring for a few weeks so I have a chance to make some mods.

What we have ready now are the white 9 inch or so square drains with the round cover that have a bunch of 1/2 inch holes around its perimeter. People with experience with these say they aren't great especially if you don't have a real good floor taper to the drain, which I worry about with three of them. Like the concrete guy said 'this will be a roller coaster'. That tells me theres is a slim chance the floor will be sloped right for all of them.
Here's the Spec Sheet for what we have now.

So what I'd like to do is have a trough about 15' long, parallel to the garage door wall, centered in the garage. Then I will have a grate made for the void.

One question is how do I have void created when they pour? I could fix a 2x6 at the level I want, but I need to create the perimeter lip to catch the sediment.

What I'd really like is a pre made metal trough with the sediment catch and grate all built in but I can't seem to find anything like that.

Suggestions please...
)</font>

Like the members said above, it might be best to just slope the garage floor out to the driveway instead of floor drains, unless you have a driveway that slopes towards the garage making it impossible to shed water away from the garage.
The "physical" reason is because they add cost to the job that a simple downward slope could overcome. The concrete is rarely poured perfect enough to allow the whole slab to drain without a puddle here and there.
The "red tape" reason is that I've had personal experience with one building inspector failing a garage floor with drains because he said the township & EPA are afraid you'll pour motor oil, chemicals, etc. down the drain and contaminate the water table. I'm not saying YOU will, but that's what they say.

What you might want to consider is a horizontal drain in your concrete apron, just outside the door so you can catch runoff from entering the garage and not be subject to the scrutiny given to the interior drain.

 

[jhortonvt]

I live in Vermont so I can't just send the water to the doors, in the winter it will freeze the doors shut. I have seen some people slope towards the doors but just a couple of feet inside the doors they have their drains, so it never actually gets to the door.

 

[jhortonvt]

I live in Vermont so I can't just send the water to the doors, in the winter it will freeze the doors shut. I have seen some people slope towards the doors but just a couple of feet inside the doors they have their drains, so it never actually gets to the door.

 

[jhortonvt]

Vernon,
Any idea where you got your trench drains, sounds like just what I'm looking for.

 

[jhortonvt]

Vernon,
Any idea where you got your trench drains, sounds like just what I'm looking for.

 

[beenthere]

I wash the cars in the garage in the winter time, and couldn't have the water running towards the door.

My two drains are about 12" square hard plastic boxes and the drains just drain to the ground beneath. When I first built this house in '67, code wouldn't allow the drains in the garage unless they went to the septic tank. No drains to daylight. Now they can be plumbed to daylight, but my 'soil' under the garage is glacial till, so it drains well and have no problem getting a car washed and the water drained away. If I wash both of them, then the water will pond at the drain for a short while.
Pic attached of one. I've seen them at Lowes, HD, and Menards.

 

[beenthere]

I wash the cars in the garage in the winter time, and couldn't have the water running towards the door.

My two drains are about 12" square hard plastic boxes and the drains just drain to the ground beneath. When I first built this house in '67, code wouldn't allow the drains in the garage unless they went to the septic tank. No drains to daylight. Now they can be plumbed to daylight, but my 'soil' under the garage is glacial till, so it drains well and have no problem getting a car washed and the water drained away. If I wash both of them, then the water will pond at the drain for a short while.
Pic attached of one. I've seen them at Lowes, HD, and Menards.