One possible solution, albeit troublesome, is to drain the pool for a
couple of weeks until the bees "learn" an alternative watering site
 
 
--------------------------------------------------------------------------
|   Thomas G. Paschall, Jr.    |Be anxious for nothing, but in
everything|
|                              |by prayer and supplication with
 |
|   Jackson, South Carolina    |thanksgiving let your requests be known
 |
|                              |to God. And the peace of God, which
 |
|             USA              |surpasses all comprehension, shall guard
|
|                              |your hearts and your minds in Christ
 |
|       [log in to unmask]        |Jesus. - Philippians 4:6-7
 |
--------------------------------------------------------------------------