This problem has recurred three times now.
I run my pool with water from the balance tank through the filter and back to the return jets. When the balance tank became low I switched to the main drain. When the motor kicked in a cloud of "dirt" came from the jets, this took about three days to clear. After this I changed from the balance tank to the main drain more often. But if I forget or just get lazy when I have had the main drain off for about a week the ploom occures. Any sugestions on how this occures
Thanks in advance.