Just moved into a house that has an old softener that was installed in 1978, and it looks like it hasnt been operational in years.....unit is unplugged and the valve is set to bypass the softener alltogether. The town I live in is a small rural community and about 5 years ago they replaced their water system 100% with a new tower and added an iron filter. The water is chlorinated as well. I have talked with a couple neighbors and they do not have softeners. Would it be best if I sent a sample of my water to a lab for testing before I make a decision? Thanks