I purchased a Intex skimmer shortly after I set up our first pool for the first time this year. The pool comes with two lines from the pool to the pump and one return line from the pump to the pool. (See attachment) The skimmer is connected to the line to the pump farthest from the return to the pool. For the second Line to the pump, Intex provides a plug with a small hole in it (See attachment) for use when the skimmer is connected. When I use the Intex vacuum hose, the plug with the hole is replaced with a plug without a hole to increase the suction on the vacuum hose (I suppose), the skimmer is disconnected and the vacuum hose is attached to the line to the pump where the skimmer had been connected.
I noticed that when I disconnect the vacuum hose and reconnect the skimmer, the skimmer seems to move more surface water if I don't replace the plug with no hole with the plug with the hole to the second line from the pool to the pump.
Confused?? Now my question. Is there any reason I need to use the plug with the small hole when the skimmer is attached? Or can I leave the plug with no hole in the second line from the pool to the pump so as to increase the flow of water to the skimmer.
I have attached image of the pool. The hose to the far left is the pool return. The hose on the far right is the skimmer/vacuum connection. The hose in the middle has the plug.