The top level of our waterfall doesn't drain, so it collects water, bird poop, bugs, algae, etc when it's off- and then dumps all that into our pool when we turn it on. I thought about taking some mortar and filling it up to the top of the lip so there's no recessed area anymore... OR- drilling holes in the bottom/sides so that any leftover water would drain out down the steps of the waterfall (I'd probably need to smooth some mortar in the bottom to angle the water towards those holes).
Any ideas on how to improve this? Here's an image...
Any ideas on how to improve this? Here's an image...