This guide describes the steps required to install a Pentair Triton 2 Side Valve Sand Filter. The flow of water to and from a sand filter is generally controlled by a Multiport Valve (MPV). The valve can be mounted on the top of the filter tank or on the side of the tank. This guide describes the Iinstallation of a side mounted version. Although this guide is specific to a Pentair Triton 2 Side Valve Sand Filter, many of the steps discussed can be applied, in general, to other side mounted filters.