BRUSH!

Most people who own and maintain their swimming pool probably have and use a pool brush for cleaning the bottom and sides of the swimming pool. Since 1997 we have had 2 swimming pool brushes. One for regular swimming pool duty and another for the Dogs. 

We have 2 Boston Terriers, 1 Cairn Terrier and a Husky Shepherd mix.
The 2 Bostons love to chase the brush. Here is Joe hovering under the brush while swimming in the pool. Presley prefers chasing from the edge of the pool.. 

We sometimes call Joe, Pirana Jaws., Here is an example of why, 
Sometimes Joe is so focused on the brush the only way he will let go is if you put him underwater until he needs to come up for air.
Here is Presley going after the brush. 
Presley and Joe Usually mean business 
when it comes to the Brush!
Ellie prefers swimming.
Images from the Summer of 2004 & 2005
A KingsRuhl Production