Did the same job on the 89 I used to own. I used the same type of pool hose and it worked great. I tied a string around both hoses and worked them into place while the tank was slowly brought up. This was a fun job that I did my self with the use of some floor jacks. Have fun because I remember learning a few new curse words during this project.
Steve, Christy, Anna and Phoebe (Border Collie)
1994 Classic 30'11" Excella - rear twin
2009 Dodge 2500, 6 Speed Auto, CTD, Quad Cab, Short Bed
Hensley Arrow hitch with adjustable stinger
WBCCI # 3072