super duper very wrong!!!!!   just made first runs tonight.  scared the crap out of nipples!  I'll post up some pics as soon as I figure out how to get them out of the internal memory.
anyway 1 container plus 5 gals of water..   nope  I used 1/2 the container and added over 3 gallons of water...  the shit was bouncy at first so we made it more runny by adding water.  okay, tossed 4- 30oz cups of the the stuff on the carpeted in run.  ended up scraping off 2 cups and putting back in the bucket - nips said it was too fast.
loong story short - plenty left over ,   maybe used a $1 worth of material.