Pentair Modular Media Filter PLM150

Follow all steps in the 'Disassembly' section

Has the pressure gauge reading increased 10 PSI over the start-up pressure?

Was the filter cleaned more frequently due to accessories being affected?

Ensure no acid cleaning is attempted

Use only PHMB cleaners if using PHMB sanitizers

Avoid washing filter debris into the outlet port

Follow all steps in the 'Assembly' and 'Initial Startup' sections

Pre-Disassembly Safety Measures

Close isolation valves to prevent flooding

Open air release valve and drain fitting

Wait until all pressure is released and water drained from filter tank and system before loosening Posi Lok™ Ring

Close isolation valves to prevent flooding

Open air release valve on top of filter tank to release all pressure from inside of tank

Follow all steps in the 'Disassembly' section

Enter the current pressure gauge reading

Is the pressure increase 10 PSI (69 kPa) over the start-up pressure?

Are pool accessories noticeably affected by decreased flow?

Do not attempt to acid clean the filter or module

Press down on the small catch behind the safety latch

Press or tap the latch out of the 'Tee' slot in the tank

Snap the new latch into position

Describe any issues encountered during the replacement process

Is the new safety latch holding the Posi-Lok™ ring in the locked position?

Confirm that the filter is not operated if the safety latch is damaged or will not hold the Posi-Lok™ ring in the locked position

Pre-Disassembly Safety Measures

Open air release valve and drain fitting

Wait until all pressure is released and water drained from filter tank and system before loosening Posi Lok™ Ring

Install the filter by placing the port in the bottom of the filter cartridge over the tank outlet port and push down firmly to seal

Ensure air bleed assembly on top of the module is clean and properly mounted