If you are selecting sewer valve or water valve boxes, you need to know what kind is likely to be the most durable over time. There are four main types, and all can be effective depending on the amount of drainage you are dealing with and how much traffic is likely to be going over the lid. Obviously, what works for a home will not last as long in a schoolyard. And what works best on a city street or sidewalk may be overkill for an office location.

Here are four different types of valve boxes.

1-Dry cast concrete: This is made of pre-cast concrete. Dry cast concrete boxes are generally considered much more durable than plastic boxes, as they last for 50 or more years as a general rule. You will often see them fitted into sidewalks and street curbs. Fitting is important, as improper fitting may result in cracks in the cement and leaks. In addition to their use on streets and sidewalks, dry cast concrete boxes are also installed in schoolyards, industrial businesses, and city parks. They are heavy and difficult to install.

2-Plastic: These come in various levels of strength, the most durable being Spec grade. Plastic boxes are easy to install and lightweight. They usually come in either a round shape or a rectangular shape. Many building engineers prefer the round shape to the rectangular shape. The lids of the round boxes aren’t as likely to get stuck due to corners getting a buildup of dirt and grime.

3-Composite: This is another material you can choose. Composite boxes are stronger than their plastic counterparts and are made of recycled materials, such as polyester and fiberglass. They are relatively easy to install, although, of course, it is important as always to properly Cialis Professional align the valve boxes so they do not shift around. The composite material lasts long and is cheaper and simpler to install concrete.

4-Cast Iron: This is the oldest design type and is still used often. It is heavy and difficult to install, but is very durable. Cast-iron valve boxes come in many shapes and sizes, including an octagon shape, a round shape, an oval shape, and a rectangle shape.

Author Bio: CP Test has gained a reputation of integrity, quality valve boxes and other products, and technical expertise. (http://www.cptest.com)

Category: Technology
Keywords: Valve Boxes