I've completed the unpleasant task of removing the Wilcox-Crittenden Headmate toilet from my 35-3. I also had to remove the discharge hose to the holding tank, which was a Sealand Odor Safe that has become clogged with calcium and even more inflexible with age. I'm now prepared to install a new Raritan PH II toilet and need to decide on what sanitation hose to use. I HATE the Sealand Odor Safe because it's so hard to get onto fittings and I've just learned that it's no longer the same hose anyway. The company that recently bought Odor Safe has lost the right to use the original hose to an Australian company, so it's a new and unknown product. I'm considering using the new Shields Poly X which is VERY spendy at $18/foot but I only have a two foot run. It claims to be easy to get on the fittings and guarantees impermeability, both good things. Has anybody actually used this hose? Any comments or pointers welcome!