I originally posted regarding the fact that I seem to have 1/2 the suction I used to when I vacuum. Now the suction when I vacuum is great completely inside the sweeper, but technically there is no suction at the "bristles" of the sweeper. We have checked the hose, no leaks, no leaks in any lines, pool is working GREAT, water is crystal clear, everything seems to be fine!
Okay, so now my question is, could my sand be bad? The sand has not been changed since the pool was new - 5 years this year. How often do you need to change your sand? How do you CHECK your sand? What should you look for to find a need to change the sand or not?
And last but not least, WHY do you, or should you, change your sand?