8/12/2023 0 Comments Pool waterfall wall ideasOne problem people run into when they cut a sheer into the main plumbing system is that they will try to get more water flow to the sheer descent (as opposed to pool returns) and the head loss drops on the the return side of the plumbing to a point that is too low for the pool pump and the pump starts to rattle and make noise. While it's a little more expensive to add the additional equipment at the pad as well as spec a separate plumbing loop, it is far, far easier to control and run a water feature that has an independent loop rather than fiddling with valves to try to achieve the right look. Pool builders often ignore this detail and will either use a really overpowered pool pump (high head, high flow) OR they will try to tie the sheers into the main pool plumbing loop and thus rob the filtration system of flow. Choose from a variety of impressive water feature designs to find the perfect fit for your tranquil backyard pool. Most of the sheer descent manufacturers will spec a minimum flow rate for a given sheer. Scuppers, sheer descents and waterfalls are all examples of open pipes that need high flow rates. As such, these pumps are designed to lift water vertically no more than about 10' or so but they can supply flow rates of well over 80GPM (some as high as 150GPM). Waterfall pumps are designed to work for applications where high flow rates are needed but not necessarily high pressure (i.e., low head high flow). Flow rate of water matters! I am of the opinion that low head water features like these should have dedicated plumbing loops (their own drains and return to the pool) with their own waterfall pumps. These sheer descents can be tricky if you don't plumb them correctly.
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