Installation and Operating Instructions for Clearwater Self-Cleaning Suction Screen

1. Before installing a CW Screen, check pumping systems pressure. If pumping with very low pressure, a booster pump may be required. Consult specifications in CW brochure for recommended operation pressure. Your CW screen will operate at pressures less than the recommended operating pressures, the cleaning action isn't as strong under low pressures. Notify factory of low pressure so we can modify spray arms.

2. Do not install a back wash line smaller than 1 1/2". If your CW screen will be located more than 100 feet from the pump a somewhat larger line may be necessary to over come friction loss.

3. Check your CW specifications to be sure you don't exceed by very much the CW's maximum flow range.

4. Thoroughly flush the backwash line before attaching it to your CW screen. Failure to do this could result in plugging spray jets inside the screen.

5. Your CW screen should not be located any closer than 6 inches to any object.

6. Install your CW screen's flanged outlet to pump's suction/inlet pipe, if other adapter is desired instead of flange, please contact the factory. Plumb the backwash line into your pumps discharge pipe. It is not recommended to use the threaded plug holes in the pump case because at that point there may not be enough pressure or water volume to operate the screen.

7. Backwash line should be plumbed ahead of the main line's butterfly valve. The butterfly can be partially closed to create sufficient back pressure during start-up.

8. Install on the backwash line these items in order from the pump discharge pipe. One properly-sized gate or ball valve (if pressure exceeds 100 P.S.I. we recommend a pressure regulator) one in-line 8 mesh strainer and one pressure gauge.

9. If it should become necessary to access the internal parts of your CW screen, it's very simple. Four bolts remove the entire screened area for complete access to all internal parts. Special access plate available upon request.

10. Your CW screen does not need more than 7 inches of submergence because the self-cleaning action breaks up any vortex that might form.

11. Your CW screen with internal rotating spray bars lets you avoid complicated set-ups. Your CW screen is a rugged steel galvanized or epoxy coated body with heavy gauge stainless steel mesh screen. The CW screen is versatile and affordable for self-cleaning pump suction applications.