Mutli-port valves allow easy back-washing and
rinsing of a pressurised sand filter and although a filter can be
operated without them, they are generally considered an essential
On the right you will see the Multi-Port Valve in closer detail,
the correct position for each function is clearly shown on the outer
dial .. simple to understand and simple to use ...
The Sand Pressure Filter, as the
name implies, requires the sand, which is used to filter and
polish the water ... Normally this is a course grain 'Silicone'
sand, which has been the natural choice for users for many years.