Septic Line Question

[absolutxj]

I'll be moving to a new house in the country in the next few months and am already planning for a garage build. My problem lies in the fact that the only place for the garage requires driving across the septic line coming from the house. I'm wondering if the line can be dug up and have concrete tube or some other support placed around it so a driveway can be installed over top. Surely someone has run into this problem before. Thanks in advance guys! Enjoy the forum a whole lot!

 

[larry_g]

Should be no problem driving on the supply line to the tank. Driving over the leach field is not the best idea. That said the depth of the line and the soil types will have a bearing on the issue.

lg
no neat sig line

 

[Kevin_b_c]

When you say septic line, which line are you referring to?
House to tank, tank to distribution box, or leech field line?

Also, are you going to have heavy equipment/trucks driving across it during the construction of the garage?

 

[Tim The Tool Man]

Leech field line? Bad Idea. You don't want to compact that soil or crush the line -It is usually thin walled perforated schedule 20.

Line to tank or line to distribution box? Shouldn't be a problem as long as you dig a section of it up to inspect it. If it is cast iron or schedule 20, replace it with schedule 40 PVC, or better yet go schedule 60. If it is already 40, consider replacing it with 60.

As stated above the type of soil matter as well, I would back fill with 2A modified stone and compact it in layers as I go...

 

[absolutxj]

Thanks for the quick replies guys. This would be the house to tank line. I'm not planning on a lot of heavy trucks driving across it with the exception of probably a concrete truck when the floor is poured. I guess one time or one hundred times probably doesn't matter driving across it though.

 

[brownbagg]

might want to do it after the slab is poured, concrete trucks will destroy anything, you going have to fix it anyway

 

[TommyK]

As long as you have at least 2 feet of cover and you use processed gravel from the top of the pipe up you will be fine.

 

[csp]

As long as you have at least 2 feet of cover and you use processed gravel from the top of the pipe up you will be fine.

My question for the OP was going to be how deep is it?

 

[rvr6000]

Not sure what part of the country you are you in but something my dad (retired plumber) always mentioned was making sure the line was deep enough if you are going to be driving over it in the winter. Driving over a road in the winter always tends to drive the frost a little deeper compared to other areas that don't have vehicle traffic.