This document is an operating manual for the SMBW 4000 Series™ filter. The manual contains important information about the installation, operation, and safe use of this product. Before installing this product, please read and follow all warning notices and instructions. Failure to follow safety warnings and instructions can result in severe injury, death, or property damage.
This manual provides instructions for the operation, installation, and maintenance of the Pentair SMBW 4000 Series filter system. It details the use of diatomaceous earth (D.E.) for precoating the filter elements to ensure efficient water filtration. The document includes specific guidelines for mixing the D.E. slurry and the required quantities for different filter models.
| Maximum operating pressure | 50 psi |
|---|---|
| D.E. Precoat Requirement | 7 lb. per 10 sq. ft. |
2.4 pounds of Diatomaceous Earth are required for the SMBW 4024 filter model.
The filter should be backwashed when the pressure gauge indicates an increase of 8-10 psi over the initial reading.
The recommended D.E. has a median particle size of 34 microns.