I need help, desperately. I have two valves on my pump, when looking down at them, the left one says "return" at the top, then spa is written on the left tubing and pool is written on the right piece of tubing, these all connect and go into the filter. Then, the only exception on the right says "suction" at the top with spa written on the left piece of tubing and pool skimmer written on the right. This set of tubing comes of the motor. So far today I have tried every combination I can think of and can't get the pool to skim. In fact, all I have accomplished is getting all the water out of the spa. And tick off a garden snake in the process. What direction are these valves supposed to be in????