I am a new intex sand filter and salt water generator owner and upon taking my first swim today I noticed I installed the strainer in the upper/out position on the pool wall and protruding jet On the intake/lower position! I have only been running the filter pump so far while the salt dissolves. Do I need to drain the pool to switch the parts? Is it very bad to operate the filter with the parts in the wrong places? Any advice on how to proceed would be greatly appreciated!