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Callington Unblock‑S Lavatory Pipe & Tank Cleaner – Biodegradable Scale Remover

Callington Unblock‑S Lavatory Pipe & Tank Cleaner – Biodegradable Scale Remover

Callington

(Backordered) Normally Available within 3-7 Days.

SKU:5120/42/AMS

Regular price $31.95 USD
Regular price $33.25 USD Sale price $31.95 USD
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Callington Unblock‑S Lavatory Pipe & Tank Cleaner – Biodegradable Scale Remover

Powerful cleaner formulated to safely remove limescale, calcium deposits, and buildup from aircraft lavatory waste lines and tanks. Biodegradable with a thickened formula for enhanced contact.

  • Biodegradable and fast‑acting — removes scale buildup safely and effectively
  • Thickened formulation clings to vertical surfaces for improved cleaning action
  • Safe on a variety of materials including polycarbonate, rubber, sealants, tapes, plastics and paints
  • Reduces risk of waste line blockages and Aircraft on Ground (AOG) incidents
  • Approved to aviation standards: AMS 1640C, Boeing BSS 7432
  • Suitable for vacuum or recirculating systems used in aircraft lavatories

Callington Unblock‑S is engineered for the routine maintenance and deep cleaning of aircraft toilet systems. As waste accumulates during regular operations, deposits of scale and calcium can form within pipes and tanks, increasing the risk of blockages. Unblock‑S helps dissolve these deposits and restore efficient flow, reducing downtime and maintenance costs.

Application & Use

Unblock‑S is suitable for both vacuum and recirculating toilets:

  • Routine preventative maintenance: Treat at least every two weeks for all aircraft types to help prevent buildup. Use 1 quart (946 mL) per toilet on narrow‑body aircraft and 2 quarts (1.89 L) per toilet on wide‑body aircraft.
  • Vacuum toilet lines: Pour the recommended amount down each toilet starting from the forward lavatory. Flush 1‑2 times to distribute product into the pipe system. Allow cleaning solution to remain for 2‑4 hours for best results.
  • Recirculating systems / holding tanks: Dilute Unblock‑S 1:1 with clean water. Charge the waste tank to the flapper valve level and allow the solution to circulate for 7‑8 hours, flushing periodically for maximum coverage.
  • Deep cleaning & remediation: Use with airline/MRO cleaning tools during heavy maintenance for comprehensive results. Rinse and dispose of chemical according to local regulations.

Technical Specifications

  • Appearance: Thickened clear liquid
  • Biodegradability: Yes
  • Application: Aircraft toilet waste lines and tanks
  • Approvals: AMS 1640C, Boeing BSS 7432
  • Safety: Use with appropriate PPE, follow local disposal regulations
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