When using the 1 Â½â€ hose hooked up to the skimmer this year I noticed that I didnâ€™t seem to be getting the suction I did last season. I first noticed this when I had the vacuum head attached to the hose. I took that off and it still doesnâ€™t seem as powerful as it used to be. There is no blockage in the hose and I did notice that the pressure goes down to about 6psi when the hose is connected to the skimmer and normally it runs at about 15psi. I decided to check the pressure after I noticed a change in the sound of the pump when the hose would be connected. I have only lived in this house with the pool for about 3 years and I had no pool experience before this, so it is possible that this always happened and I just never noticed it before. Is it common for the pressure to drop when you hook up the hose to clean the pool? Is there something else that I am missing? Any input or ideas would be appreciated. Thanks.