The type with the valve. How fast is it supposed to fill? We got our system going and are still adjusting so it's not in with the chickens yet. It takes a long time to fill but when I push on the valve, water does come out. More than a drip but less than a stream. But when it's filling, it's like a heavy drip. Do I need to take the valve out and do something to it? I know about turning the nuts to adjust the water level. At one point it was getting too full so I adjusted it for a lower level and it overflowed. But when I readjusted it it didn't overflow so I don't know what that was all about. We got this system for when we go on vacation so dh's brother can refill more easily from outside the coop.