Just opened my pool for the summer and I am experiencing what I believe is a filtering issue, as the water is still cloudy. Sand has not been changed in 5 yrs. but I added "Fiber Clear" to the skimmer & and a clarifier to the water, & then ran the pump for 24 hrs. I have no problem changing the sand but there may be another issue. My Tahitian HR-25 sand filter does not have removable laterals . I was told by a friend that if some sand is "spit" back into the pool after backwashing , the laterals may need to be replaced (not sure why)? If this is the case what would I be looking for upon inspection? Don't want the filter system to be down too long with 90 degree temps. I really appreciate any advise offered.
Chlorine level: between 1ppm-2ppm
Calcium, Alkalinity,TDS levels unknown