Thetford Porta Potti 135 bellows storage prep

Use this Thetford Porta Potti 135 guide to document bellows, model, cleaning, and storage details before support.

Owner-safe checklist

• Record the Porta Potti 135 model, bellows action, flush-water level, waste-tank level, cleaning product used, and storage state.
• Use only normal owner cleaning, emptying, and storage observations from the support page.
• Use Thetford support for parts, seal, pump, plumbing, or repair decisions.

Official sources

• Thetford Porta Potti 135 support page