Dissolves fast. Septic safe. Portable toilets. No-clogs. Ultra soft! Camco's tissue is softer than ever! Camco has combined two layers of ultra soft 100% biodegradable tissue for comfort you can feel. Comco Tissue is free of all perfumes and dyes and quilted for extra comfort and durability. Safe for all septic systems - won't clog. Camco Tissue is the comfortable solution for your RV, boot or portable toilet. 100% biodegradable tissue. No dyes or perfumes. Also great for use in portable toilets.