Softening pool water

[CarlD]

My first questions would be: Why is your CH going up? Are you using cal-hypo for chlorine? Is your pool hard-sided (as opposed to vinyl or fiberglass) and is it curing? Are you getting MASSIVE evaporation so the water gets more concentrated?

What's the CAUSE of rising CH because a level of 300ppm is perfectly fine in ANY pool.

[Rickster]

Continuous evaporation.
I've never pumped water out of the pool (never enough rain to do it).

In the Summer, I add a couple inches a week of 300ppm water.

By the time I've added 15,000 gallons to the pool, I've got double in it.

I guess after 4 years, I've added 45,000 gallons.

===
SWCG
15,000
Pebbletech.

[mas985]

I have the same problem, high CH fill water and high evaporation. I choose to refill because it is the cheapest easiest option.

[CarlD]

Do you cover the pool when you are not using it? That would tend to inhibit evaporation. If I find that gets the water too warm, I run my solar panels at night and they act like radiators instead, cooling the pool.