Thetford Porta Potti 155 Bellows and Storage Prep

Use the Thetford Porta Potti 155 and 155SL support page to capture bellows-pump, model, level, cleaning, and storage details before support.

Owner-safe checklist

• Record the Porta Potti 155 or 155SL model, bellows-pump behavior, level indicator state, storage condition, and Thetford chemical or cleaner used.
• Empty, rinse, and store the toilet according to Thetford owner guidance when preparing for travel or seasonal storage.
• Save photos of the model label, level indicator, cap area from normal access, and any visible leak location.
• Use Thetford support or qualified RV sanitation service for pump mechanism, valve, seal, leak, parts, or warranty decisions.

Official sources

• Thetford Porta Potti 155 and 155SL Support