A rainwater collection tank system employs a plurality of barrel/tanks, each having a plurality of strainers with a water pump for raising stored water to one or more faucet dispensers/spouts. Permanent tanks are at least partially submerged. Smaller portable units may be anchored to a campground area with screws and/or pins. Multiple units can be situated adjacent one another beneath a multi-sectional V-shaped funnel system of rain diverters.