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Depends on locality as many of the one family homes require I install sewer mains from 4" - 6".
The size of the "sewer" is based on fixtures units that are connected and to local codes
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How do you tie water softner into septic line?
You must first connect a 1/2 inch PVC pipe to the outlet for the regeneration fitting on the softner and run this pipe outside and trench to the sewer drain and tie into sewer drain. The sewer drain will then flow the brine regenerater fluid to the septic tank.
Can you hook a water drain pipe to a 3'' sewer pipe and it be safe?
If you are talking about a roof water drain pipe to sewer it is illegal. If you are talking about a sink drain pipe well that is where they all connect to so yea.
What is the maximum slope for 4 inch sewer pipe?
1/8th per inch
What is the standard drop per foot of a 2 inch sewer line in a house?
1-foot section of pipe contained 0.6528 gallons of water. 1/4 inch per foot but standard would be 1/8" per foot sewer line necessary in a house. alliedallcityinc.com
What is the correct amount of pitch for 6 inch diameter sewer pipe?
.25 per inch per foot
How do you figure the pitch for a new drain for a washer with a length of approx 50 feet to sewer hub?
The building code where I live requires a drain pipe to slope approximately 1/4 inch per foot (+ or - 1/8 inch). The recommended pitch for a 50 foot drain would be 12-1/2 inches.
What size of pipe for 300 ft of sewer line?
I would use 3 inch for that.
What is the minimum fall for a 4 inch sewer pipe?
1/8" per foot.
When 3 inch original sewer pipe is at the street can 4 inch be reduced to tap into it?
Yes. A reduction fitting can be used.
Open a cast iron pipe clean out?
Yes, they can be opened for routine sewer and drain and leader cleaning
You are working with a 3 inch PVC drain pipe and a 3 inch PVC flange and there is too much play as you insert the flange into the drain pipe?
Probably the wrong size flange. Is the flange a toilet collar? If so the pipe is probably 4 inch.
How do you tap into cast iron drain pipe for a new shower drain in basement?
By cutting in a cast iron Wye so the flow enters the sewer line (soil pipe) at a right angle
