07-20-2019, 11:17 AM
All within inside the 20 ft setbacks.
Septic and leach field can be in the setback. This is especially important on very small lots.
Septic can be right up to the lot line, but a 5-foot setback is common.
If you're doing the site layout yourself: make sure the septic tank inlet lines up neatly with the lateral coming out of your house, because the pipe fittings only come in standard angles. There's no easy retrofit for an oddball alignment or angle.
3" lateral requires 1/4"-per-foot slope, at 4" you can get away with 1/8"-per-foot. Septic inlet will be 4".
Use long-sweep fittings, install cleanouts every 50'. The "two-way" style sold at Home Depot can be installed with a riser to the plug to match grade. ABS must be packed in #4 sand, not crushed rock. PVC is acceptable too, but then you're definitely shopping Central Supply because they have all the stuff.
(No, I'm not a contractor or inspector, this is just one of my hobbies.)
Septic and leach field can be in the setback. This is especially important on very small lots.
Septic can be right up to the lot line, but a 5-foot setback is common.
If you're doing the site layout yourself: make sure the septic tank inlet lines up neatly with the lateral coming out of your house, because the pipe fittings only come in standard angles. There's no easy retrofit for an oddball alignment or angle.
3" lateral requires 1/4"-per-foot slope, at 4" you can get away with 1/8"-per-foot. Septic inlet will be 4".
Use long-sweep fittings, install cleanouts every 50'. The "two-way" style sold at Home Depot can be installed with a riser to the plug to match grade. ABS must be packed in #4 sand, not crushed rock. PVC is acceptable too, but then you're definitely shopping Central Supply because they have all the stuff.
(No, I'm not a contractor or inspector, this is just one of my hobbies.)