VigIIPeaBurner wrote:There's the opposite problem to "hard" water, acid water. It eats copper and hot water tanks.
My well water is acidic, ph = 5.7 I've tried all kinds of acid neutralizer systems over the years. All were a pain. I finally just replaced everything with plastic or stainless steel. Other than the ph, my water is great.
Yanche, I agree about the neutralizer systems being a pain. Others can learn from my experiences.
I lived for 20+ years in an alluvial valley where the water was from a high pH glacial aquifer in limestone. The water was great tasting, just really high hardness so I needed and used a softener. No big problems in 20 yrs. with the two units I had. There was a unsoftened line to the kitchen sink. Planning on an unsoftened line to the kitchen sink for most of your drinking water is a good idea IMHO. Even though there's very little sodium in the amount of softened water a person drinks, some people have strict health needs. I moved a few miles up the hill where the water was from a granitic neice aquifer. Water from them tends to be acidic. It was, 6.2 pH. I wish I had the foresight have plastic installed when we built. The builder pushed hard for Cu. I assumed it was a code thing but never checked. Always had copper lines. I noticed they were installing type M in another house. I specified type L Cu.
It wasn't long until I could taste and see the differences; nasty taste and blue stains. The nasty taste was from the acidic water leaching copper from the house lines. I ended up with a piggyback neutralizer and softener. Bad idea because of the required recharge/backwash frequencies caused unnecessary salt usage. Should have gotten two separate units. The only
savings one gets from a piggyback system is the cost of a timer head/valve body. Even though the unit is properly sized, the softener can go much longer before recharging is needed but the neutralizer needs to be back flushed to fluff the bed three times a week. Fluffing the limestone gravel keeps channeling down. Also, at high usage periods the water does not stay in contact with the limestone long enough to get the pH up. The low pH water that passes thru at high usage sits in the pipe when the flow stops and the Cu etching resumes. I have to tend the neutralizer part every 4 months to keep it at peak because I lengthened the recharge frequency to save salt. New plan is to add another large neutralizer (CaCO3) before the piggyback. This unit will increase the water’s contact time with the limestone and backwash frequencies can be 3 x per week. The piggyback will stay at once a week. I think that will lengthen neutralizer maintenance periods on both units. The softener part is no problem. I clean the salt jet once every two years but do use the pelletized salt because it's cleaner and I only clean the brine tank every fifth year instead of every year.