Pool owners if your Waterfall refuses to let water fall as it did before try replacing the LIP Spacers. My pool company (not worth mentioning) would not help in fixing my problem other then to tell me that my sheer has collapse? To fix this problem Zodiac sells Lip Spacers Repair Kits. The fix is to remove and replace the Spacers throughout the length of the sheer making it level again and water shall flow. I will be purchasing the kit and will DIY. I will let you know how she BLOWS. Thank you for your time and patience. Michael