New Fresh Water Pump

I was not able to determine the furry stuff. It did not appear like an algae. It felt somewhat oily and soft. In fact the new pump directions have cleaning instructions...use only 2 tablespoons of household bleach per 30 gallons...make sure to run pump to get solution in the whole system...open all taps hot and cold until smell the chlorine...let sit for 4 hours...rinse by filling tank and running until smell is gone then drain tank...fill again and do smell test again...repeat if needed.

Thx for the advice...many who read this will be remindied that they should do it.