Answers:

What is your current filter pressure?
-Current pressure is 18 lbs. When it's clean the pressure is 14 lbs.

How high is the filter gauge relative to the pool water level?
-50"

Number and length of suction lines from the pool to the pump?
-Two lines which come together as one somewhere underground: from skimmer to pump is 12.5' and from drain to pump is 22'


I doubt the pump is over sized, it is one of the smallest pumps on the market. If you have sand blowing into the pool, it could be broken lateral. That is the most common issue with sand filters.

-I have completely replaced all the components to sand filter, so I have ruled out a problem lateral. The only thing not new is the tank.

Thanks, DBR