Membrane filters can be used for final filtration or prefiltration, whereas a depth filter is generally used in clarifying applications where quantitative retention is not required or as a prefilter to prolong the life of a downstream membrane. Membrane and depth filters offer certain advantages and limitations.
Concrete Hard-standing-When using concrete as a surface to support your new shed, you must ensure that it is level, flat and that it is dry in time for your shed delivery and installation. Here are the basic steps: 1  Using pegs and string, mark out the base area (allow 5 cm extra).
How To Build A Shed Ramp. A shed ramp is essential when you need to get heavy garden machinery in and out of the shed. A typical shed floor can be 9-12 above the surrounding ground level, so some people even use a ramp for getting bicycles in and out. This article gives a few ramp design hints as well as tips on how to build a timber ramp for a shed.