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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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OEM AquaStar PF2011 Pressure Gauge with Boot provides a vital monitoring component for AquaStar PLF27000 and PLF35000 Pipeline Filters, helping maintain safe and efficient system operation. It offers precise pressure readings and includes a durable protective boot that defends the gauge from harsh pool environments. Built for easy installation and lasting reliability, the PF2011 ensures early detection of pressure issues, helping extend the performance and lifespan of the filtration system.
IMPORTANT: While the Pressure Gauge Boot is very helpful, it can be moved without your knowledge so it is important to also record the new filter start-up filter pressure on the front of this manual for future reference.
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OEM Part for Pipeline Filters: Designed specifically for AquaStar PLF27000 and PLF35000 filtration systems
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Clear and Accurate Pressure Monitoring: Provides consistent pressure readings to maintain filtration performance
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Protective Boot Included for Durability: Protects against damage from impact, chemicals, and UV exposure
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Fast and Simple Installation: Allows for quick replacement to restore accurate system monitoring
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Essential for Preventative Maintenance: Detects early pressure changes to support filter system efficiency and longevity
When reading a bouncing pressure gauge, estimate the middle of the bouncing needle and then use that as the filter’s current operating pressure.
With a new or clean filter cartridge installed, configure the recirculation system valves and pump so the system is operating at the design filtration flow rate. After confirming the system is operating properly, use both hands to rotate the Pressure Gauge Boot so the START Arrow is pointing at the operating pressure gauge needle. A bouncing pressure gauge is normal, aim the Boot’s Start Arrow towards the middle of the bouncing needle’s operating range.
For best results, clean your filter BEFORE pressure reads 10 psi higher than the original starting pressure. Your filter pressure reading will increase as it removes debris from your pool. This buildup of pressure will vary due to different bathing loads, temperature, weather conditions, etc. Check your filter pressure frequently, typically whenever you check your water chemistry and after you clean skimmer baskets.
Check the operation of your pressure gauge in the following manner:
• The pressure gauge should go to zero (0) when the pump is OFF and the filter Manual Air Relief Valve is OPEN.
• The pressure gauge should indicate pressure when the system is operating properly, EXCEPT when a variable speed pump is operating at a very low speed.
• Apply two or three wraps of Teflon tape to the pressure gauge ¼-inch threads.
• Carefully thread the gauge into the ¼-inch NPT hole in the filter Lid. Turn the gauge by hand until snug and then use a 9/16-inch or 14mm box-end wrench to finish tightening the gauge so it is facing a readable direction.
• DO NOT OVER TIGHTEN.
• When the filter is started for the first time, the Boot will need to be adjusted so the START Arrow points at the operating gauge needle when the filter is new and clean, and with the pump and recirculation system configured and operating at the design filtration flow rate.
- Aquastar Pipeline Filter Models: PLF27000 And PLF35000





