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Water in Crawl Spaces

Standing water in crawl spaces and flooding can be the cause of major foundation problems for a home owner by allowing settlement, moisture damage in a crawl space, and vapor barriers to be ruined. While sand is sometimes an appropriate fix, it can commonly act as a band-aid and not fix the real issue because sand often times just stores water like a sponge. A properly designed and installed drainage system not only covers up water in a crawl space... It gets rid of it! Once the water is gone from the crawl space, your foundation is better protected and future moisture damage is prevented!

Removing Water in Crawl Spaces, aka Water Management

1. French Drains

1. French Drains

French Drains, aka draintile, is the means of allowing water to be directed where the system designer wishes. It should allow water into the inners of the piping but not allow debris and sand to enter the piping. A well-installed system will not be visible but will be covered up with drainage stone to prevent clogging and allow the easy egress of water.

The appropriate depth, shape, and how extensive the system is should be decided by an experienced crawl space technician. A closed-loop system is most effective and more is typically better. Installation is very hard and labor intensive so a proper system design is important to prevent cost gouging.

This system should allow the removal of water for a lifetime from your crawl space! Our systems come with a long-term no-clog guarantee!

2. The Sump Pump Basin

2. The Sump Pump Basin

Improper installation is common here and can cause failure of the system… Crawl space drainage is a rugged application and should be strong enough to withstand the conditions.

The sump pump itself will be sitting in a constant pit of water and will often have to pump very large volumes during a good downpour. The less moving parts, the better! We only use the best pumps with low failure rates, high power, and reputable warranty service.

The sump pump basin MUST allow water to the pump while PROTECTING the pump itself from debris. The best sump pump basins will have small holes drilled, be very strong, and allow direct penetration from the drainage pipes. Let us help you manage your ground water!

3. The Sump Pump

3. The Sump Pump

Once the water makes it’s way into the sump pump basin, it is pumped out with a sump pump. A crawl space sump pump should be activated by the presence of water. Our pumps utilize vertical float switches so once the water level reaches a certain point, the water is discharged outside the crawl space.

As long as the sump pump has power, the water level should not rise high enough to show signs of flooding in the crawl space. These pumps are made powerful enough to discharge over 2,000 gallons per hour. Also, the impeller permits the passage of solids without clogging.

Some pumps require you to be present, plug in, and unplug the pump to turn it on and off. They are not suited for a crawl space water management system and should run automatic.

4. Battery-Back Up Sump Pump

4. Battery-Back Up Sump Pump

When power is lost in a home, the power to most sump pumps is lost. For that reason, battery-backups are recommended with crawl space water management systems that seek to keep the crawl space dry, “all the time”.

With a battery back-up sump pump system, the back-up pump activates in the event of a power loss. It is powered by a 12V deep cycle battery external to the sump pump system, typically near the pump. It should be inside of a purpose built battery container and sat on top of a wooden or concrete block.

The backup pump in the system we install can pump a healthy 2,300 GPH at a 10 foot head which rivals many standard 1/3HP 120V operated primary or main sump pumps.

Call: 757-301-5088

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The Crawl Space Experts of Virginia

Virginia Beach
Newport News
South Mills
Camden County
Elizabeth City

4970 Euclid Road
Virginia Beach, VA 23462


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