I feel bad for you. Without the CYA we're just throwing darts here. Maybe you'll get lucky at Wal-Mart. But just my personal opinion...... if you get to Wal-Mart and don't find any such kits or CYA reagents, it might be just as well. Just wait for the TF-100 anyways. Here it is Thursday, and if your water is already cloudy due to a suspected algae situation, I doubt you would finish a "SLAM" by Saturday to make it crystal clear. The high FC level required to do a SLAM might not be good for the guests anyways. Also, there's no telling how high your CYA really is. If it's really high (which I suspect) it may require a partial drain to lower the CYA. I know you don't want to do that before the Saturday festivities.
So I would almost be inclined to suggest saving your money and wait for the TF-100. For now, just make sure you take everything out of the water (i.e. tablets) and put nothing in the water other than regular liquid bleach. When I did the Poolmath calculator for your 14.6K pool size, going from 0 FC to 8, I came-up with 1 Gal and 3 qts worth of bleach. Why did I pick an FC of 8? Well, I am only assuming here

, but I suspect you have quite a bit of CYA in your pool already. I just picked a CYA of 50 as a mid-line starting point (guess). It might actually be much higher. But if you look at the Chlorine/CYA chart (link in my sig), you'll see the Target FC for a pool with CYA of 50 is 6. I figured you could go a couple ppm over that (8) since some will get burned by the sun anyways. If your CYA is higher, then your FC would be even higher than 6, possibly 8 or 9.
I just hate to see you spend more money when you've already ordered the best kit out there, and you may have to drain some water anyways after Saturday. If it were me, I would simply use my money to get some bleach. Assuming your current FC is almost zero right now, add about a gallon and a half of bleach right away today to get your FC to about 8, then tonight add another gallon. Friday, evening add one more gallon of regular bleach and continue to brush your pool to keep things stirred-up and going to the filter. Saturday morning clean your filter real good and maybe add 1/2 gallon of bleach in the morning before everyone arrives. Just trying to do some "damage control" is all.
After your TF-100 gets here, you can post your CYA and other readings (especially FC and CC) and we'll go from there. If you managed to get lucky and find a CYA test kit at Wal-Mart today, then of course we'll be glad to help.

By the way ... when all of this is done, you WILL prove your husband wrong by having a crystal clear pool.
