I have recently installed a new holding tank (new aluminum, from same mfg as original, I know plastic is better but they had original specs to build with) in my H33.5 and am in process of replacing the hoses with Sealand Odorsafe (1.5 inch). Problem is they are a nightmare to work with - when I try to bend to the same shape as the originals, they kink or simply won't go, I tried heating with blow dryer to give some shape but doesn't do much - someone suggested heat gun but I know you oppose this. I don't have one knuckle without a cut on it... I either need 90 degree curved elbows to attain the same shape (which were not used before and I can't seem to locate) or there is a trick I am missing? Also, since this is hose to aluminum, should I use a sealant where the hose meets the tank fittings? my yard says no but I'm not sure about that. Help.