I have an 12 x 24 inground pool with a vinyl lining. The pool is about 3 years old.
The last few weeks I noticed that the suction from the skimmer to the filter is weak and also the jet stream going from the filter back to the pool is also weak.
The pressure on the filter itself is normal (8 - 10psi).
I clean the filter every week and removed any part that I can from the pump, to make sure there is no debris in it (none found).
Any ideas on why the suction and the jet stream are weak?