I got it towed to the garage this morning and told them to look at a possible cause of the problem rather than just replacing the hose. I found indeed strange that I broke 2 different collant hoses in 2 different places within a week. May be there is too much pressure in the cooling system. How about if the thermostat was not doing its job opening the circuit when the right temp is reached for example? if that makes any sense. However the temp indicator has never shown any over heating.