Pentair 155007 Lateral Assembly (5-11/32″, Almond) for Tagelus TA30/TA35 and Sand Dollar SD35
The Pentair 155007 is an OEM replacement sand filter lateral assembly used in select Pentair/PacFab Tagelus and Sand Dollar sand filters. This lateral helps distribute water evenly through the sand bed during filtration and collect water during backwash. Replacing damaged laterals helps restore proper filtration and helps prevent sand from returning to the pool.
Common Compatibility (Verify Your Filter Model)
- Pentair Sand Dollar: SD35 (commonly 8 required)
- Pentair/PacFab Tagelus: TA30, TA30D, TA35, TA35D (commonly 8 required)
Always confirm compatibility with your exact filter model and parts diagram, since internal assemblies can vary by production version.
Key Details
- Part number: 155007
- Part type: Sand filter lateral assembly
- Length: Approximately 5-11/32″
- Color: Almond
- Style: Commonly listed as threaded lateral for these models
What This Part Does
- Supports even water distribution through the sand bed
- Helps maintain proper filtration and backwash flow paths
- Helps prevent sand blowback to the pool when laterals are intact and properly seated
Common Signs You Need New Laterals
- Sand returning to the pool through return jets
- Cracked, split, or broken lateral fingers found during service
- Uneven filtration or abnormal pressure/flow after ruling out valve and pump issues
- Internal damage discovered during a sand change
Installation Notes
- Shut off the pump and relieve all filter pressure before opening the tank.
- Remove sand carefully to access the lateral hub/manifold.
- Inspect all laterals and the hub/standpipe assembly while the filter is open; replace damaged parts as needed.
- Hand-tighten laterals snugly (do not over-tighten plastic threads).
- Add water to the tank before adding sand to cushion laterals and reduce breakage risk.
- After reassembly, backwash and rinse before returning to Filter mode.
Related Products (Aqua Pool Supply)
- Pentair 155007 Lateral (Search)
- Tagelus TA30 / TA35 Filter Parts (Search)
- Sand Dollar SD35 Filter Parts (Search)
- Pool Filter Sand (Search)
- Sand Filter Multiport Valve Gaskets (Search)
Maintenance Tips
- Backwash when pressure rises about 8–10 PSI over your clean starting pressure.
- Always rinse after backwashing (if your valve has a Rinse setting) before returning to Filter.
- Never change multiport valve positions while the pump is running.
- During sand changes, inspect laterals and the hub for hairline cracks before reassembly.
