How To Increase Alkalinity In Saltwater Pool. A standard method to lower alkalinity and ph levels in saltwater’s aquariums is to add peat moss. An increase in ph is tends to come from body lotions or sweat washing off into the pool, as well as potentially using a high alkalinity water source to fill up your water.
And soda ash (sodium carbonate) is used to raise ph and slightly raises alkalinity. Causes of high pool alkalinity.
Alkaline Water Test Kit Alkaline Water Drinking Water
Check the total alkalinity of the pool water before raising ph. Determine if the alkalinity is high or low.