[buzzcop63]

If the sound is coming from the bedroom area it could be on the drivers side beside the bed, if this is a carpeted area their are two screws holding a lid on the water pump, you have to find the screws and then can take it off. If not the location add water to your water tank and open a sink faucet and let it run, keep going until you find it. I also asked my Cougar dealer where the water pump was and he said run it and keep following the sound!