How much did paul revers horse drink after he ran?

His horse was a Quarter Horse...according to google...

8-10 gallons on an average day.

Approximately 1 gallon for every 100 pounds in winter spring and fall, and as much as 2 gallons for every 100 pounds in the summer.

[[Q/How much does horse drink daily|horses do drink around three large buckets of water daily (that is the average for a 15hh HORSE not pony, after all, they are mamals and they are big so they need...

Depending on what climate the horse lives in, how much work it does and the size of the horse the answer will vary, but a good estimate is between 10-25 gallons.