parametric wrote:
Been using Costco Kirkland brand for years. It passed the 30 second in jar test and breaks down easily.
Same here. In the beginning, we bought a few household and RV branded TP and did the jar test. The Kirkland breaks down nicely into little pieces. Same with a regular household brand or two (can't recall, Scotty maybe?) Interestingly, one RV TP brand broke into small pieces and one didn't, Thetford IIRC.
Thing is, there is no industry regulation on RV TP grading and specs so they can call it whatever they want and charge mafia prices for it. :M Same with "septic safe" labeling.
Does it matter if it breaks down into little pieces or not? Dunno and I think opinions are divided equally. For us, the Costco TP is cheap and breaks down so that's what we use. If you have a clear elbow on your sewer hose, you can see blobs of white stuff flowing through it and I doubt it matters if the blobs are a mass of individual little pieces or made up of continuous sheets attached together. One thing for sure, it's never in there long enough to biodegrade like in a septic tank.