Why the warning for citrus cleaning solutions?

My guess is because most citrus products, and citrus solvents have De-limenene in them. It is known over time to break down the glue holding the backing together. Also, if used incorrectly and at full strength, it can change the color of some carpets.

I won't claim to know Mohawks reasoning, but I think the answer above is close. The first concern would be possible delamination form over-use or getting too much into the adhesives holding the backings together.

The second concern is that D'limonene can be hard to rinse. It depends upon how well refined it is and also at what concentration it is used. A D'limonene spotter which is concentrated would be harder to rinse away than a little d'limonene added to a prespray as a booster.

If left on the carpet it can lead to resoiling.

WARNING: The cost of quality d'limonene has increase several hundred percent in the last several months. You may see higher prices for products with a lot of d'limonene. Those that only a small percentage of d'limonene may just absorb the cost increase. Other product may switch to a different solvent and reduce the voluem of d'limonene in their product.

I have been experimenting with Cross Americans Attack on CGD. My commercial accounts are pretty much a nightmare. But with this Chem I have had an easier time prescrubbing and extracting. Just read over this thread and thoought this may help you guys searching for a possible answer to this situation. It is sure looking promising for me.

Makes me wonder how many times this industry will move away and back again to citrus. Everyone was selling the "new" citrus products 15 years ago. Then they discovered re-soiling problems and it was dropped. It was relegated to spotters. Now there has been a resurgence with citrus only franchises, I wonder how long they will last? This reminds me of Shaw and the Chem-dry battle.

I love my citrus spotters