I knew this was a mistake but it ended up on our regisrty anyway. First of all, the hose between the pump and shower head is flimsy and wrinkled - not even remotely round as shown in the nice picture on the box. Pretty obvious that a kinked hose doesn't work very well.Next problem - the electrical switch is in the shower head and the contacts back at the pump end are unreliable - hence the other reviews that said that it doesn't even work. A couple of whacks gets it going - a highly specialized troubleshooting technique ;)Next problem - they made an attempt to put a rubber seal around the battery compartment, which would have worked fine if it was built properly - like out of a block of aluminum. But a crappy seal is a crappy seal and batteries and water don't mix.And the last problem is that the flow is ridiculously slow! Come on, a dixie cup to dip water is good enough for my kid - and yours. Buy the $16 tub.