Assertion: septic tank's compartment | /r/HasProperty | connected by four inch vertical slot
Facets:
Source sentences:
text: (iv) Compartments shall be connected by a four inch vertical slot at least 18 inches in width, a six inch elbow, or two 4-inch elbows located at a distance below the liquid level equal to one-third the distance between the invert of the outlet and the bottom of the tank.