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.
At this point it may join the main stack. It is, therefore, possible for a house to have several bathrooms, and only one vent stack going up through the roof. Typically improper venting results in a siphoning or gurgling noise when water is drained out of a sink or tub. A sewer odor at a fixture can.