Make sure bag is very loose on feed hose so bag can collapse when the pump shuts
Do not attach the bag to feed hose and see if it collapses. If your old bag still
works check for small tears, worn fabric or loose Velcro allowing for or disguising
the real problem.
If you still have problems with debree falling out, simply attach the bag to the
feed hose lower so the bag is not stretched. This way the debree won't fall out.
Check for fine debris or pollen, any waxy substance that can plug up the fabric
on the cleaner bag.
Dry bag and if possible turn bag in side out and clean.
Run cleaner with out bag on to check if cleaner still floats
Take bag off and turn cleaner upside down while the pump is on and check for strong
flow on the water jets shooting up the column. You are looking for any restriction,
clogging of the jets. Restricted jets cause insufficient suction to the pool surface
will cause cleaner to float.
Check, hose connection at the wall, clean filter on the wall connection.