Hi I have a 1 year old pool with a Spa Whirlpool 2 feet above the Pool level. There are Glass bricks that the waterfall splashes as it goes into the pool. These Glass brick deviders are ozzing what appears to be Calcium stains and crusting in between the grout. Is this a Chemical problem or a construction problem. Any help on solving this. Stoping this.

I am using Trichlor Tablets, and keeping all in check.

Thanks for any help.