Kinetico Level 3 Assembly (PN 8917) – Commercial 1.25" Control Head Component

Restore the efficiency of your commercial water treatment system with the Genuine Kinetico Level 3 Assembly (PN 8917). This critical component is designed for Kinetico's 1.25" high-flow commercial valves and features the reinforced 1/2" threaded drain connection.

The Level 3 assembly is responsible for managing the hydraulic signals that dictate the brine draw and slow rinse portions of the regeneration cycle. Precision-molded from heavy-duty, chemical-resistant Noryl®, this assembly ensures that your commercial softener regenerates with the exact salt dosage and timing required to maintain peak resin bed health.

Symptoms: Why You Need to Replace Your Level 3 Assembly

In a commercial environment, downtime isn't just an inconvenience—it's a cost. Replacing the PN 8917 fixes several common failure points:

• Failure to Draw Brine: If your system is cycling but the water level in the salt tank isn't dropping, the venturi or internal pathways within the Level 3 assembly are likely clogged or worn.

• Salty Water After Regeneration: If the "Slow Rinse" cycle is sluggish or failing, salt remains in the resin tank and enters your plumbing. The Level 3 assembly controls the duration and flow of this rinse.

• Leakage at the Drain Port: The 1/2" threaded connection can develop hairline fractures over years of high-pressure use or over-tightening. If you see a constant drip at the drain fitting, the housing itself needs replacement.

• Excessive Water in Brine Tank: If the internal seals fail to close properly after the refill cycle, water will continue to creep into the brine tank, leading to potential overflows.

• System "Stall" During Brine Cycle: If the valve reaches the brine draw stage and stops advancing, the hydraulic pressure balance within the Level 3 assembly is likely compromised.

Technical Specifications

• Part Number: 8917 (Level 3)

• Connection Size: 1/2" NPT Threaded Drain Port

• Compatibility: Fits all Kinetico Commercial 1.25" valve bodies (CP Series, etc.)

• Hydraulic Drive: Non-electric, water-powered operation

• Build: High-impact, corrosion-proof composite

Expert Tip for Installation

When installing the PN 8917, ensure the O-rings are lightly lubricated with a food-grade silicone lubricant (like SG307 Silicone Grease). Because this is the 1/2" threaded version, avoid using excessive Teflon tape or over-tightening the drain fitting, as this can crack the port on the new assembly.