Waterway 505-1930 Threaded Sand Filter Lateral (Carefree / ClearWater / TWM, Pre-2003 Style)
The Waterway 505-1930 is a replacement threaded-style sand filter lateral used inside select Waterway sand filters, including the Carefree, ClearWater, and TWM series (commonly referenced for pre-2003 style internals). Laterals screw into the internal hub/manifold and are responsible for evenly collecting filtered water while keeping filter sand inside the tank.
What This Part Does
- Collects filtered water evenly from the sand bed through the slotted lateral “fingers”
- Helps prevent sand from returning to the pool when laterals are intact and properly installed
- Supports proper backwash performance by maintaining correct internal flow paths
Key Features
- Threaded installation (screws into the filter manifold/hub)
- Replacement lateral for compatible Waterway sand filter internals
- Ideal for repairs after winter damage, cracks, or broken slots
Specifications
- Part Number: 505-1930
- Type: Sand filter lateral (threaded style)
- Approx. Overall Length: 4-3/8″ (measure your existing lateral to confirm)
- UPC: 806105088642
Compatibility Notes
- Commonly used in Waterway Carefree, ClearWater, and TWM sand filters.
- Best practice: match by part number and compare the thread style and length to the lateral you’re replacing.
- If you are rebuilding the entire internal set, consider replacing the full manifold/lateral assembly to ensure even wear and fit.
Common Signs You Need New Laterals
- Sand returning to the pool (after verifying correct sand grade and proper valve operation)
- Cracked lateral body or broken “finger” sections
- Visible splits at the threaded base or along the slotted area
- Reduced filtration performance due to internal channeling or bypass from damaged laterals
Related Products
- Waterway Lateral & Manifold Assembly (Carefree series)
- Waterway Lateral & Manifold Assembly (Carefree series)
- Pool Filter Sand (20 Silica)
- Multiport Valve Gasket / O-Ring Kits
- Pool Filter Pressure Gauges
- Silicone O-Ring Lubricant
Maintenance Tips
- Backwash when filter pressure rises about 8–10 PSI above your clean starting pressure.
- If you ever open the filter, inspect laterals closely for hairline cracks—small cracks can become sand blow-back problems quickly.
- Use the correct sand grade and fill level for your filter model; overfilling or incorrect media can stress laterals.
- When reassembling internals, tighten threaded laterals snugly by hand (do not overtighten and crack the plastic).
