I can't find that this topic has already been covered, but if I have missed it then my apologies.
Where I live the soil is very dry and a bit like talcum powder, the slightest breeze and the pool bottom is covered in brown dust so constant cleaning is the order of the day.
Just recently I have noticed that as I am using the vacuum that the dirt is just coming straight back through the water jets.
I have topped up the sand filter as it is now 6 years old and rinsed it all through, but it is still happening.
Can anyone please suggest what is wrong and a remedy.
Brindisi, Puglia, Southern Italy.