Hi All - Have Kreepy Krauly Sand Shark about one year old, purchased at the same time we replaced vinyl liner and pump and filter in our 20,000 gallon 18x36 in-ground in AZ.
For the most part I have been pretty happy with it, if it gets stuck on wall or corner it usually eventually gets itself free. At times it does not move as fast as I think it should and this is with all filters cleaned, etc.
The past week I keep finding it stuck against the same wall in just about the same spot and when I say stuck, I mean STUCK. It feels like it's suctioned to the liner. The paddles are not moving or attempting to move but there is still plenty of suction, to the point where I need to really tug on it to get it lose and set it free. I have never had this happen and it has happened 5-6 times in the last week.
Does anyone have any idea what might be causing this? This time of year in AZ I can't afford to not have the cleaning ability and water movement (we usually are fighting mustard algae around this time). I don't think anything should be worn out after only a year of use but if so what else could be causing this? The other concern is the liner, if the suction is not moving the paddles and just sucking the liner I don't want it to damage it.