We have 2 freshwater in-ground pools. Both are tiled. One has 400,000 Liters, the other one 480,000 Liters (they are side by side).
The pH is 7.6 but we have to add every day at least 2 liters of acid into each pool to maintain the pH at that level.
I added bicarb to raise alkalinity, but that raised the pH dramatically. So adding acid again brought down the alkalinity again. It is like a dog running behind it's tail.
Maybe someone has a tip how to get the alkalinity to 100 while maintaining the pH at 7.5? Currently the alkalinity is at 30.
My other question is how many liters of liquid chlorine should I add every day? At the moment we are adding 8 liters into the 400k Liters pool and 9 Liters into the bigger one (done every night). Is that sufficient?
The pools are getting brushed and vacuumed every night too.
We are very close to the equator so water temperature is constantly 29°C.
Thank you for any help.