Oh hell, I clean yards of this sh... stuff. And its true there are some interesting issues with vacuum cleaners out there as I have even been asked by my local store to "trouble shoot" one for them. Manufacture got involved and everything. Everybody acting like amateurs with a whole bunch of dumb drama.
Here's some reality about this stuff. Cleaned 13 or 14 of these now. Some hammered with country dirt and a couple just lightly soiled. They clean like every other tuffted carpet that ever come off those god forsaken mills when YOU USE YOUR REGULAR cleaning procedures. On my 2nd really hammered job I went along with what the customer who had been completely misinformed just like so many others I have found, that you clean with hot-water-only. I'm gonna say that again for you slooooooooow listeninnnnnnng folks. Some how a bunch of misinformation has been spewed out into the universe concerning the BS fiber marketed as SmartStrand, that you must clean with hooooot water only.
On that job some really hammered traffic lanes were NOT coming clean and mind you I gots 240 coming out the machine. "Are you happy with this", I asked the custy. She replied, "oh hell no, I'm getting my carpet store on the horn. I shut the machine down so we could have fun with this. Big store up in Sacto hums and haws on speaker phone. I said why don't you come down here and I'll let you play with my toys and you show me and the custy how to clean this with hot water. She's laughing like heck, he's getting pissed and gets Shaw on his other line. Mine you he won't bring Shaw on the line with us he's only relaying the Q&A. I tear everyone a new one and Shaw comes back with we never said anything about maintenance cleaning with hot water only, we were/are talking about spot cleaning and to go ahead and clean with your "normal" hwe methods.
After 25 min of that stupidity I fire up my machine, hose down the remaining traffic lanes with my favorite slop, turn on my injection and away we go. Even though I only charged $210 it looked like a million. And oh my the way, cleaned that same custy 2 months ago, freeking hammered when I got there and cleaned up like new. I got one dozen brown eggs and some dear jerky as a tip.....something neither of which Mikey can eat! ha
So, as said above well over a dozen since the first stupid field experience and they all clean like regular nylon carpet and I've yet to find in the warranty any word or clause that says you CAN'T use detergent. Yes there a couple pile heights and densities that really bog down your vacuum brush bar. Even my Proteam has chewed hard on a couple of them. I certainly hope as more and more get cleaned that the urban bs about this hyped up carpet are left in the ditch. Meantime, get on with cleaning them and don't listen to bad information. I've even heard our industry talking heads talking out their ass about this product.