HW Marine Reefer Salt - Potassium test


Hey guys, needed a favor.

Just switched to HW Marine Reefer salt. Doing research I saw that there were some batches that had low potassium levels.

I don't dose potassium and rely on my WC's to replenish it.

Was wondering if anyone local had a potassium test kit so I could get insight into this batch. Just need one test, could I go anywhere to get it tested? Don't feel it warrants the purchase of a $40 test kit.