water hardness

I know that hard water can lead to inefficiency due to the lime accumulating on the heating rods and it can cause leaks on an air purge valve. However, can it cause heat exchangers to leak? Tech support at Navien claimed this but when I asked how, he couldn't come up with an answer. I've...

I bought a home with a fleck water softener with either a 2500 or 2750 head and either a 3200 or 3210 timer. It doesn't have a brine valve, just a hose going to the salt tank. I'm trying to make adjustments to improve water quality and wondered if not having a brine valve could be causing a...

I am interested in purchasing a Fleck 5600sxt and using calculators online, I think a 48,000 grain would suit me but I wanted to get your input. I calculated our water hardness to be about 22-25 as that's the high end of the range. Our water comes from the city and the report can be found...