Sleeve Pipe for waste pipe and water pipe - where does it go? Everything I read says in or below the footer. #1 or #2?
Thanks!
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I have always went below the footing.
Extra care has to be used when going below the footing. If the natural compaction is disrupted it will cause the footing to settle causing a crack in the footing and ultimately the structure/wall above will settle as well. A well sleeved (Sch 80) within the footing at a proper depth to avoid freezing might be a better approach. I have done them both ways and personally seemed to be better satisfied with the mid footing approach.
Local inspectors may have an opinion but I expect both could work... If you have a reinforced footing with a couple of 1/2" or 5/8" bars it will have no trouble spanning a narrow trench for a sewer or water pipe. If you are doing a thicker non-reinforced footing a sleeve poured in the footer will be unlikely to compromise the bearing strength of the footing.
Thanks guys!
Quote from: nicholaseb on October 02, 2012, 01:09:23 PM
Thanks guys!
I failed to mention that when I run the sleeve through the footer I place a solid 4" concrete block on the bottom side for the sleeve to rest on. It is hard to get the poured footing under that sleeve w/o leaving a airspace. Of course #5 or better rebar between the sleeve and top of the footer should be added. One drawback is that with a sleeve there may be a possibility of water penetration if it is not sealed off around the inserted pipe and sleeve.
One reason here that it is so much more common to go under is that the frost depth some years does reach down a long ways.
Pretty much we use a lot of steel in the footings as well.
Hopes that helps.
or you go through the wall depending on what the heights are !
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