1 How much water can I save by switching to a ULF toilet? A household of four people with a standard five-gallon-per-flush toilet would save approximately 60 gallons per day or about 22,000 gallons per year.  Do ULF toilets cost more? As with other toilets, ULFs come in a broad range of prices.
From Wikipedia, the free encyclopedia. Polyvinyl fluoride (PVF) or â(CH 2 CHF) n â is a polymer material mainly used in the flammability-lowering coatings of airplane interiors and photovoltaic module backsheets. It is also used in raincoats and metal sheeting.Polyvinyl fluoride is a thermoplastic fluoropolymer with the repeating vinyl fluoride unit: It is structurally very similar to polyvinyl chloride. PVF has low permeability for vapors, burns very slowly, and has excellent resistance to weathering and staining.It is also resistant to most chemicals, except ketones and esters. It is available as a film in a variety of colors, and formulations for various end uses, and as a resin for specialty coatings.t is also used in raincoats and metal sheeting. Polyvinyl fluoride is a thermoplastic fluoropolymer with the repeating vinyl fluoride unit: It is structurally very similar to polyvinyl chloride. PVF has low permeability for vapors, burns very slowly, and has excellent resistance to weathering and staining.
What is WCF. Windows Communication Foundation (WCF) is an SDK for developing and deploying services on Windows. WCF provides a runtime environment for your services, enabling you to expose CLR types as services, and to consume other services as CLR types. WCF is forthcoming Microsoft technology for service-oriented applications; it is designed to address these requirements. WCF is part of .NET 3.0 and requires .NET 2.0, so it can only run on operation systems that support it.