This sounds as a good option with the pressure tester,

also if the coolant level is too low~~ I would assume that due to

its

lower mass/ammount it would tend to boil or get closer to a

boiling point, thus it would work above its nominal

operating range and would evaporate easier through

any tiny holes in the hoses(if any are left). I guess I should have

added sufficient coolant after I replaced the hoses since my

coolant level now is actually below min but stable.