Watering tank?

Last week either May 1st or May 2nd I looked out the kitchen window and saw this metal structure by Walter's corral.  Had no idea what it was so went to investigate once his owner went inside.  It was a huge watering tank (do not know if that is the correct name) that he brought home using Walter's horse trailer.

Have I mentioned it has been awfully hot here lately?   These were temperatures last week.

DEL RIO, TX Weather Updated: May 05 8:06AM CDT

Mon   May 05

Sunny

Hi  99º

Lo  68º

CHANCE OF PRECIP   0%

Tue   May 06

Partly Cloudy

Hi  99º

Lo  71º

CHANCE OF PRECIP   0%

Wed   May 07

Isolated T-Storms

Hi  94º

Lo  73º

CHANCE OF PRECIP   30%

Thu   May 08

Isolated T-Storms

Hi  96º

Lo  71º

CHANCE OF PRECIP   30%

Fri   May 09

Scatterd T-Storms

Hi  92º

Lo  67º

CHANCE OF PRECIP   30%

Sat   May 10

Partly Cloudy

Hi  97º

Lo  70º

CHANCE OF PRECIP   20%

Sun   May 11

Partly Cloudy

Hi  97º

Lo  72º

CHANCE OF PRECIP   0%

Last Monday May 5th the sun was blaring and yet his worthless owner had this metal thing next to his corral generating even more heat for the poor horse!  I am surprised he realized it and moved the thing farther away but in my opinion not sufficient enough.

Here is another picture I took on Friday.

The worthless teenager now feeds him at 9:02 p.m. or thereabouts,  since I happen to be out at that time watering the trees he makes a lot of noise so I will hear him, lol.  I guess he must be watching a TV show that ends at 9:00 p.m.