I really don't think it is defective work and I know it isn't our products. Our liquid soap is clear and our shampoo is white. The products we use to clean the shower are also clear and white.

I am going to call Laticrete on monday - at the very least the may be able to suggest what to clean the epoxy grout with that is safe for marble.

First home, I said 'detective', not defective...t not f! LOL With this font they look similar.

Hi I know this is an old thread but IâÂÂm having a similar problem. Was Laticrete any help in solving the problem? Were you able to find out what and how to fix what the blue/green color?
Thanks in advance for any help!

Hmm....could be your water? When we had a swimming pool, we added some water from our own well, that pool turned green, then brown, then purple (just like grape Koolaid) Every time the pool guy told us to try this or that chemical to fix it, the color changed. We finally got it right, but I think that certain minerals in your water can cause the color changes. Sometimes I notice a greenish ring in my white sink, but it cleans up easily. Grout is another story, much harder to clean. I am in the process of remodeling our bathroom, which has white grout and I will never choose white again. Too hard to keep nice and white. It looked great when we first put it in, but over the years it's been a hassle trying to keep it bright and white.

We are on a well and get green stains all the time - mostly when DH neglects to add chemicals to our water conditioner. It's caused by acid water that corrodes the copper water pipes. It cleans off easily for me.

Wondering if you might have copper or magnesium in your water, or any of the products you use in the shower.