I was told vinegar cleans out deposits of lime or hard water. Also told vinegar doesn't "sanitize". Just cleans out deposits. I've been cleaning out the hot water tank about every 6 weeks and can see the build up of lime or scale or whatever when I flush it out. So I'm sure there's more in water system. When washing the car if I don't dry off all water there are hard water spots that stick forever. Was also told that somebody with a "hard water tester" had reading of 1033. I assume that's a bad number but not sure compared to what. Cleaned out hot water tank yesterday and probably got 2 thimbles full of build up.
Here is pic of black tank water hose with the build up on it.
