How would on calculate carrying 33lbs?
I just got through swapping out the water in my aquariums. Taking into consideration that 1 gallon(US) is about 8.34 pounds and that I took out around half of my 40 gallon (20gallons would be like 166.8 pounds) and all of the 10 gallon(83.4 pounds) and that it was done at about 4 gallons (33.36 pounds) at a time how would…