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Author:
mrhaneysr (FL)
I have an old home the house has settled 8 inches. (Florida Cracker home built on cement pillars) The 4 inch septic line has a negative pitch (3 inches )coming out of the home (first 4 feet) then ok. We have only one toilet on this 4 inch line line (Grey water diverted). The line runs 66 feet.
Will it flow with out assistance? What the best fix with out tearing it out?
Edited 1 times.
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Author:
bernabeu (SC)
assuming (I know I know) the line was originally properly pitched at 1/4" per foot it had a 'fall' of 6.6"
if it had been 'minimally' pitched at 1/8" per foot you had 3.3"
you are now negatively pitched
you WILL need to correct the situation
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"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Author:
mrhaneysr (FL)
Checking the rest of the line it looks like 1/8 inch. Would a added 2" sewage grinder system ( like Liberty Pumps P382LE51 1/2-Horse Power 24 by 24-Inch Pro380 Series Simplex Sewage System) fix it?
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Author:
North Carolina Plumber (NC)
A pump would "fix it", but you'll need a catch basin, and a vent for it. The pump will eventually give trouble and have to be replaced.
There's no way to raise the first 4' of pipe ?
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Author:
m & m (MD)
Have you had problems already with stoppages? If not, why not wait and see if you will? The settling didn't happen overnight so it's been operating under those conditions for some time. The sewage pump makes sense in your situation but it should be noted that that model is NOT a grinder pump, simply a sewage pump.
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