Straight seed consists of only one type of grass and is suited to situations where you want to achieve a certain look or effect. Blends (several varieties of one type) and mixtures (combination of different types) offer better disease resistance and a uniform lawn.lended Seed Mixtures: Blended seed mixtures combine several different kinds of the same grass species to capitalize on the strengths of each type. By using the same species, you can ensure a more consistent appearance to your lawn.
In new construction, the plumber will install a separate vent for any plumbing fixture that does not use the vanity vent. If a fixture has its own vent line, the line will run vertically to the attic and tie into the vent-and-soil stack if possible. If not, a separate roof exit is necessary. Alternately, the vent pipe can exit the home through an exterior wall, with the opening covered by a vent plate.
The individual vent with a Studor AAV as the vent terminal is an effective method of venting island fixtures or fixtures located in a remote location. The air admittance valve must be located a minimum of 4 inches above the weir of the trap.However, the valve may be located below the flood level rim of the fixture being vented. INDIVIDUAL VENT - 5 - Studor Mini-Vent, Redi-Ventor Tec-Vent LAV. Figure 2A common vent is similar to an individual vent.igure 9The stack type air admittance valve, Studor Maxi-Vent or Studor Mini-Vent, can serve as the vent for a vent stack or stack vent.