Pentair Piping Assembly Upper | Triton C TR100C / TR140C Sand Filter | 156355 Pool Liners Worn or seized bearings cause

Worn or seized bearings cause uneven wheel speed

remove the Skim-Vac plate to restore normal skimmer operation and surface skimming

sand bypasses the filter bed and enters the pool return lines — a clear indicator that one or more laterals need replacement

Check pump

Keeps water crystal clear

Pentair Piping Assembly Upper | Triton C TR100C / TR140C Sand Filter | 156355 Pool Liners Worn or seized bearings causeThe Pentair Piping Assembly Upper (156355) is the OEM replacement piping assembly for the Triton C TR100C and TR140C sand filters, routing filtered water from the filter tank to the multiport valve outlet. What It Does The upper pipe assembly forms the internal water pathway between the filter's distribution system and the valve connection at the top of the tank. When this assembly cracks, warps, or develops leaks, water bypasses proper filtration and