A WS1.5 on a 32000 grain system? That is unlikely. Nobody even makes a 9" tank with a 4" opening. You probably have a WS1. I need the tank size, not the capacity it claims. You also need to do a softness test, the city says it is about 25 really means nothing, unless you have only 1 well or source they draw the water form and they never mix water from other supplies.
That being said, I am going to guess the following.
32K grains is a maximum capacity calculation that is used to make a system sound bigger than it really is. Your actual capacity should be set at 24000 grains when you are using 8 pounds of salt.
Do you have any iron or manganese in the water supply?
Does the valve have 3 or 5 buttons.
I assume the system is metered.
Fill, 8 pounds is fine, but you can test the system to see if it properly filling, it should refill approximately just shy of 3 gallons of water into the brine tank.
Up-Brine, 60 minutes, ugh, upflow brining is great when it works and the system is working perfectly. I am not a fan.
Backwash, 8 minutes, after upflow brining? Really, ugh, again, this is fine but... sigh...
rinse 3 minutes, perfect.
capacity, 19K, should be 24K
Regen auto, good.
Hardness, 30, set to the actual hardness, test the water, otherwise there is no way to know.
Regen day, 5? Not even sure what that is, other than the day of the week, day 1 through 7, but what is the point on a metered system? Is the system metered?
Your settings would waste a lot of salt but should maintain soft water.
Unless it is a timeclock model, then...
5 people x 70 gallons x 25 grains hardness = 8750 grains daily, the system would need to regenerate every other day.
Your system is way too small.
You need a 60,000 grain (real capacity, not maximum salt dosage capacity) or a 2.5 cubic foot system.
The size of your system would make it very innefficient and intermittent hard water could definetly become an issue.
Somebody here will know the programming of the older Clack valves better than me. Even so, reprogramming it wont fix the underlying problems.