I have a robotic vacuum and the sand is what is in the bag...from the filter or under the pool, not sure. Do not see any obvious rips or tears in liner. What really boggles my mind is that I saw the puddle last week and it went away. If it was a true leak wouldn`t it be constant???
I vacuumed and topped off the pool..we`ll see what happens. Tried the phenol red, but I`m not sure I did it right. Just floated around as a cloud of red...
Thanks for the input, Lisa