On 4/21/2012 12:56 AM, gonjah wrote:
......or calcium chloride

I need about 10 lbs a year for my pool.

I was just quoted about $20 for 10lbs.

Anyone have good cheap source they want to share?

Thanks for the responses.

This is what it is:

http://www.aldenleeds.com/products/d...ess-increaser/

Helps to keep the plaster healthy.