I have a Hayward Power-Flo Matrix pump that I purchased in May. Last week I noticed that on the top of the rear of the pump there is a threaded cap that has popped off and got lost in my lawn. The cap appears to give you access to the motor. When I called Hayward I was advised to contact the motor company Century because these things pop off all the time and they would be able to replace it. So far I have not had any luck with contacting Century. Anyone ever have this problem and know where I can get a replacement cap?