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    Tags:自然災害 | 地下室 | 暴雨 | 洪災 | 抽水泵
    Our basement has only flooded twice in 15 years. Would it be wise--or a waste of money--to install a sump pump?

    This is a matter of personal preference, and depends on the cost of installing the sump pump compared to the inconvenience and cost of having a flooded basement. If the basement is finished or used for storage, waterproofing the space and installing a sump pump will help protect your investment and personal property. A battery-backup unit can also be installed alongside the primary pump for additional protection against power outages and primary-pump failure.

    Is there any way to prevent the sump-pump drainage pipe that extends to the outdoors from freezing? And if the pipe freezes, will the pump burn out?

    There's no simple way to prevent the pipe from freezing, but there is a product called Freeze Stop, which allows water to exit your basement even if the discharge pipe is frozen solid. The device is cut into the discharge pipe, right where it exits the house. Then, if the discharge pipe freezes, the water will be diverted through the Freeze Stop and drain to the outdoors. Most sump pumps have a thermal relay switch that will trip if the motor becomes overheated. The relay will then automatically reset itself after the motor has cooled.

    答:要想防止水管凍住,沒有簡單的方法,不過,有一款名為“凍不怕(Freeze Stop)”的產品,能確保水從地下室排出,即便水管已經凍得嚴嚴實實。該裝置在排水管離開屋子處與排水管連接。排水管凍住時,水流改變方向從該裝置排出室外。大部分排水泵都有一個熱繼電器開關,一旦馬達過熱就會自動跳閘。而一旦馬達冷卻,繼電器又會自動復位。
    The basin I purchased for my sump pump has no holes in it. What size holes must I drill, how many and how far up from the bottom do I place the holes in the sides? Should I also drill holes in the bottom?

    Some contractors drill holes in the bottom of the sump basin and around the sides to allow excess water to enter and prevent the basin from floating up. If you choose to drill holes in the basin, make sure the holes are smaller than the "solids handling rating" of the pump (generally 1/4 in. to 1/2 in. for a standard sump pump). This will prevent larger solids from entering the basin and clogging the pump. To connect to the drain tile, a 4 1/2-in.-dia. hole is standard and is generally placed 10 1/2 in. below the top of the basin.
    答:有些制造商會在水泵儲水盆底部和盆壁打孔,好讓積水進來,以防盆體漂起來。如果你決定在盆里鉆孔,要確保這些孔小于抽水泵的“固體粒子大小容許值”(solids handling rating,標準抽水泵的孔一般為1/4英寸在1/2英寸之間)。這可以阻止較大固體進入盆內阻塞水泵。連接排水瓦管的地方,孔的標準直徑為四又二分之一,位置在盆頂下方十又二分之一處。

    How far can a sump pump push water up from the sump pit? Is it strong enough to pump up a 4-ft. pipe?

    Most sump pumps are sized to provide the appropriate amount of flow at 10 ft of lift. The performance data on the product should indicate the maximum lift the pump can provide as well as the maximum flow rate.

    How do I know what size sump pump I need?

    What you need to consider is horsepower, not size. The horsepower requirement for a house is determined by the area of drainage connected to the sump, the depth to the groundwater, the depth of the basement and a few other factors. A 1/3-hp pump is standard for most houses.

    What is the most common reason for sump pump failure?

    A failed sump pump is usually the result of a switching problem. Sometimes the pump can shift inside the basin, causing the float that operates the switch to lodge against its side. Debris can also be a factor--it can interfere with the action of the pump switch. It's important to make certain the pump switch and float-arm assembly move freely.

    What's the difference between a standard sump pump and a grinder pump? How do I decide which to install?

    A sump pump is designed to remove excess water that enters the basin from the drain tile installed around the perimeter of your foundation. A grinder pump is designed to macerate sewage into a fine slurry and then pump it to the main sewer line located above the grade of the property. The decision on which type to install is based on the application it is intended to serve.

    When my sump pump flushes, it makes a loud banging sound. Do I need a check valve or something else to make this stop?

    The noise is a result of water hammering, and a special check valve can be installed to quiet the racket. This device is commonly referred to as a quiet check valve or spring-loaded check valve.

    We have two sump pumps. One runs quietly during pumping and at shutoff; the other pump has started making a loud "slurping" sound when it shuts off, similar to sucking on a straw at the bottom of a glass. Is there a way to adjust this noisy pump?

    In this situation, the pump isn't turning off at the proper height. Inspect the "off" position of the switch and adjust it as needed so that it turns the pump off before the water reaches the intake area of the pump. It's common for the sump pump to leave several inches of water in the bottom of the basin when it turns off.

    Our sump pump only operates two or three times a year, during the heaviest rainstorms. I'm always concerned that, after being dormant for many months, the pump won't kick on when it's needed. How can I check my sump pump to see if it's working?

    Start by making sure the discharge pipe isn't clogged with debris. Also, check that the pipe empties onto a downslope so water doesn't flow back toward the house. Once every couple of months, use a flashlight to look around inside of the sump. Clean out any debris you see, which can clog the pump's inlet. Finally, dump 5 gallons of clean water into the sump and listen for the pump to start up. If it doesn't kick on, contact a pump specialist.

    My sump pump is located in the laundry room, which has never flooded thanks to the pump. However, the room right next to the laundry room floods occasionally. How come?

    In this situation the drain tile may not extend throughout the entire basement, allowing excess water to penetrate the foundation next to the laundry room. Another possibility is that the foundation wall has a crack that's allowing water to penetrate. Next time it floods, check to see if the foundation wall is leaking. If it is, there are several waterproofing products available, including hydraulic cement, that you can use to plug the leak.


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