Water Storage Treatment 2 oz Glass Bottles 60 gallons Purification vs PetSafe Drinkwell Multi-Tier Plastic Dog & Cat Fountain, 100-oz + Premium Replacement Carbon Filters, 3 count: which is safer?

Where these two actually differ

• We flag Chemical overdose or misuse, Degradation and loss of efficacy over time, Glass bottle breakage and spillage and Chlorine residue and taste/odor on the Aquamira and not on the Drinkwell.
• We flag Bacterial biofilm growth in stagnant filter housing, Plastic seal and gasket degradation over time and Carbon filter cartridge housing materials (unknown additives) on the Drinkwell and not on the Aquamira.
• The Aquamira is glass bottles, sodium dichloroisocyanurate treatment chemical where the Drinkwell is ABS plastic fountain body; activated carbon replacement filters, which is most of the difference in these two grades.
• These two are 5 points apart, close enough that price and fit should decide it rather than our grade.