CWS Plus Sediment Filter Installation & Startup Guide
Page 6
www.cleanwaterstore.com
Rev 120215
4.
If you will be using copper piping, do not sweat the copper pipe directly on to the CWS Plus
control valve. Avoid heating up the CWS Plus control valve plastic with the torch.
5.
If have copper pipe before the Sediment Filter and it is too difficult to change out, you may still
experience some copper staining of fixtures and have a copper residual in the water because
this section of pipe will still have acidic water flowing through it. We recommend PEX or PVC
pipe up to the Sediment Filter and then copper after it, if you have copper plumbing.
6.
You do not need unions to install your CWS Plus control valve. If you need to remove it, the
CWS Plus has quick-release couplings that make it easy to put the Sediment filter on by-pass and
remove the filter system from the piping.
7.
The drain line tubing (not supplied) is connected to a drain from the drain outlet using flexible
½” ID tubing. Note that the drain can run up above the CWS Plus control and into a drain, it
does not have to drain down, as the filter backwashes under line pressure from your well pump.
Most plumbing codes require an air-gap connection, so that if your sewer or septic tank backs
up, it cannot cross connect with the drain tubing.
How Your Sediment Filter Works
See Fig 1 below. Water enters the top of the sediment filter tank (red arrows) and flows down through
the media and up the distributor tube (blue arrows). The downflow type sediment filter removes
sediment and can be backwashed, which cleans and re-classifies the media, preventing channeling.
During backwash the flow of water is reversed and water flows down the distributor tube and up
through the media, lifting and expanding the sediment media. During the backwash the media is cleaned
by the action of water flowing through it.
