I had a DE filter for a number of years and it is labor intensive and time consuming to clean compared to the cartridge filter I replaced it with 3 years ago. I wish I went straight to a cartridge filter when I had my pool built. I can not tell a difference in the cleanliness of the pool and it is a lot easier to maintain.
I have never had a sand filter so I can't comment on that. Good luck.
I have never had a sand filter so I can't comment on that. Good luck.