Thanks waterbear, waste, aylad, and CarlD, for your thoughts. I especially like waste's suggestion about getting a kicker agent from a ready-mix company. We have about a zillion such outfits here. If they can't help, I'll hit the pool store for a 50 lb. bag of Dow or Tetra.

Let's call switching to Cal-Hypo 'Plan B'.


Cheers from the Sierra Foothills,
Paul

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Of all God's creatures, there is only one that cannot be made the slave of the lash. That one is the cat. If man could be crossed with a cat it would improve man, but it would deteriorate the cat.
Mark Twain