52 FEATURES
In a bad building water entry situation, water runs across the basement / crawl space floor into the sump pit from where it is pumped away( after already wetting the building and inviting a mould contamination problem). This condition pertains when water is entering a building through foundation walls, often because the roof drainage or surface run-off is directed right against the building foundation itself.
Be sure to select the proper septic- or sump pump type. pumpproducts. com
A submersible waste pump.
Buoyancy pumps The basic principle of buoyant energy( buoyant hydraulic energy storage system) is based on the well-established technology behind pumped hydro-energy storage plants. The major difference is the arrangement and location of reservoirs at such plants.
What are septic pumps, sewage grinders, sewage effluent pumps, and sump pumps? Here we use sewage pump and septic pump as synonyms. Both classes of pumps handle black water or sewage— it is the destination that differs. A sewage pump, strictly speaking, is pumping black water( toilet waste) to a public sewer line. Conversely, a septic pump, strictly speaking, is pumping black water( toilet waste) to a private septic tank and drain-field system.
But people use these terms loosely, and even among manufacturers it is important to ask for or to read the manufacturer’ s description of what a particular pump model is intended to handle.
In addition, even among sewage pumps and grinder pumps that are intended to either pass solids or grind solids up and pump them, the vulnerability of different pump models to damage, clogging, or motor burn-up from debris that people may flush down drains and toilets varies.
Sump pumps are designed to remove unwanted water, such as surface or ground water that leaks into a building. Sump pumps only have to pump water, never solids.
A sump pump is normally installed in a pit at the low end of a basement or crawl space floor.
Keeping gutters and leaders working and correcting outside drainage errors are critical in keeping water out of a building. Does it not make more sense to prevent water from coming into a building than to let it in and then pump it out?
In a good situation, openings in the sides and bottom of the sump pit, or an underfloor drainage system, direct subsurface water into the sump pit before the ground water level rises enough to send water into the building. Over several years of operation, and partly by pumping a little soil silt as it operates, a sump pump may actually improve the flow of underfloor water into the sump pit, thus reducing building water entry.
About Southern African Pump Systems Development Association Sustainable development of the pump and related industries, including all participants, by:
• Providing skills and training:
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Provide training to new labour entrants into the industry;
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Provide a platform where the‘ experienced’ can hand over their skills and knowledge to the‘ young’.
• Providing networking opportunities:
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Provide a platform for suppliers, manufacturers, end users, employers, and labour to meet informally and develop an understanding of each other’ s challenges within the industry and create symbiotic relationships.
• Encouraging transformation and local content through the creation of a peer-regulated certification process:
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Encourage local content and transformation development without the sacrifice of sustainability.
• Lobbying the relevant government departments to put in place the correct framework to provide the industry with the opportunity to further develop and expand. PA
July 2017 Volume 23 I Number 5 www. plumbingafrica. co. za