Hybrid filter and chemical cleaning assembly and method

A hybrid filter system for a pool or spa, comprising:

• a hybrid filter assembly including a first filtration module;
• a chemical cleaning system including a chemical tank, a feed line, and a valve associated with the feed line, the feed line designed to place the chemical cleaning system in fluid communication with the hybrid filter assembly;
• and
• a controller in communication with the hybrid filter assembly and the chemical cleaning system, wherein the controller is designed to determine whether to operate the hybrid filter assembly in a filtration mode or a chemical cleaning mode based on a determined operational efficiency of the hybrid filter assembly.

A hybrid filter assembly for a pool or spa, comprising:

• an inlet conduit in fluid communication with a source of a fluid;
• a pump in fluid communication with the inlet conduit;
• a filtration stage having a filtration module in fluid communication with the inlet conduit;
• a chemical cleaning system in fluid communication with the filtration stage, the chemical cleaning system including a valve designed to selectively provide a cleaning agent to the filtration stage;
• and
• a controller in communication with the valve, the controller designed to:
• initiate a cleaning procedure in which the chemical cleaning system provides the cleaning agent to the filtration stage;
• and
• determine when the filtration module is fouled.