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Old 08-06-2015, 12:56 PM   #1
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Default Too much fall problem

This is what happens when fall causes stress on fitting
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Too much fall problem-1438880134972.jpg  

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Old 08-06-2015, 08:20 PM   #2
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Excellent. Another crap job creating work for real plumbers.
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Old 08-06-2015, 08:33 PM   #3
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Is it " per foot or a foot per "? I always get that one mixed up. Looks like they probably also had clogging issues. Too much pitch and the liquids out run the solids and the solids end up sitting there picking up more solids with each flush.
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Old 08-06-2015, 08:37 PM   #4
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My father told me about liquid out running solids inspector told me he didn't believe it
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Old 08-06-2015, 09:23 PM   #5
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Quote:
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My father told me about liquid out running solids inspector told me he didn't believe it
I've seen it happen on a job my company did, but it wasn't from too much pitch. It was a remodel where they added a toilet and a sink to the furthest point away from the stack. Had to be close to 100 feet of 3" no hub with about 4 changes of direction. Kept getting calls of the toilet clogging up. Finally sent a camera down it and flushed the toilet with a bunch of paper. You could watch the water flow at a good pace, the paper slowed down about 40' into a straight run. Flushed again with paper and the first ball would move a little but would stop the second load. It would keep building up like that until the line clogged completely.
Pulled the ceiling tiles and put a level on every piece of pipe and it had a " everywhere. Ended up swapping the toilet for an older, pre 1.6gpf, toilet and haven't had a call back since. Not exactly legal but we ran out of options.
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Old 08-06-2015, 09:38 PM   #6
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I could see that in 100 foot run but not a short run
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Old 08-06-2015, 10:43 PM   #7
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Quote:
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My father told me about liquid out running solids inspector told me he didn't believe it
I believe this is a myth. I've inspected sewers well past 1/4" per foot. More like 12" per foot if not steeper. Easiest inspection going down.....pull back sucks, especially when you're 220' out. In any case, sewer was clean the whole way through.
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Old 08-06-2015, 11:37 PM   #8
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Quote:
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I believe this is a myth. I've inspected sewers well past 1/4" per foot. More like 12" per foot if not steeper. Easiest inspection going down.....pull back sucks, especially when you're 220' out. In any case, sewer was clean the whole way through.
they will it is more prevalent in turns. tissue will stack and pack in turns in gang bathrooms you can have a hell of a mess.
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Old 08-07-2015, 12:35 AM   #9
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12" per foot or steeper is vertical. (45). At that grade solids fall. Horizontal piping, however, can leave solids behind if excessively graded
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Old 08-07-2015, 02:40 AM   #10
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12" per foot or steeper is vertical. (45). At that grade solids fall. Horizontal piping, however, can leave solids behind if excessively graded
I get what you're saying.....I've just NEVER seen a lateral have waste buildup because of excess slope. Now I have seen the bottom in cast iron flatten out and the water can't float the solids out.
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