Icepack, When you remove the hose check for flashing left by the moulding process, usually two webs opposite each other. remove these if there as they can cause a track forming a small weep.
Plastic tanks and fittings, if you have to remove hoses from these, after lossening the clip and sliding away use a 90' pick to loosen the hose from the rad spigot.
Insert the pick between the two layers and squirt some WD-40 into the gap then gently run the pick around the hose inner seat. You should find you don't need to go far before the seal is broken and you can remove the hose without all the pulling and twisting.
