If you can find them you can make your own cheap alk
buffer using 1 part Arm & Hammer Washing soda and 6 parts Arm & Hammer baking soda, mix dry and add one teaspoon per 20g to raise DKH
by 1. Make sure you add the mix to a small cup of FW
and then pour that into an area of good flow, or your sump
who comes up with this !! i like it but who would of thought ??