I installed a fancy shower head system on the first use, it leaked profusely from almost everywhere... I checked all the supply lines and tightened the lose one. Now the leak seems to be coming out of the main housing of the shower around the opening for the hand-held shower head. I'm assuming that theres a bad o-ring somewhere in the system, and it looks like I can take it apart. but wanted to know if anyone has had any success with this, or should I just return this one and get a new one?