Hi, a couple of comments.
First, I like that you are plumbing everything individually. It gives a lot of flexibility, and help isolate a leak in a pipe should one unfortunately occur.
Next - Im curious why you are using 2 1/2 pipe on the circulation system? 2 Inch normally is more than sufficient on a residential pool.
Did you select that size, because you did that research and compared the flow rate of the pump vs the flow rate and velocity rating of the pipes?
Next - I dont know much about waterfalls or the flow requirements, so I really can't comment on the pipe sizing for that.
Next - I'm having a hard time wrapping my head around floor drain back-up pipe. Most floor drains for residential pools do not have the option to have 2 pipes installed into them, (At least that I know of, Ive never seen one). So I'm wondering how this is supposed to work in the event the floor drain pipe sprung a leak under the concrete. To isolate the leaky pipe, you would have to close off the port for that pipe at the floor drain too.
Next- Pressure gauges. I dont understand why you have a pressure gauge between the pump and filter. Since a pool is an open system, there really isnt any concern of the pressure exceeding the rating of the pipe, such as there might be in a closed system, such as your home plumbing or irrigation system. The Filter will have a pressure gauge on it and the filter will is the "weak spot" in the system with regards to pressure. Any sudden rise in the filters pressure gauge can indicate there may be a blockage downstream of the filter. Any blockage of a suction pipe will result in a Low FLow Alarm on the intelliflo pump.
A better option would be to use a Flow Meter, but dont put it between the pump and filter. Instead, install it just in front of the SWG. When it comes to swimming pools, Flow in GPM is much more relevent and useful than pressure is. (Same goes for that gauge for the water fall pump).
Next Valves - No problem with where your valves are located as far as I can tell. Regarding the acutuator valves though, is the valve for the waterfall going to be actuated one? I would think that might be one that is often used and you might consider actuating it.
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Hello All pool enthusiasts. I recently started a DIY Vinyl Grecian build of a 40.5 x 16.5 with 8 foot sit and step blue steps, 48" Steel wall and braces, 3'10" flat bottom pool I purchased from Royal Swimming Pools. I currently have two Pentair Intelliflo VS pumps. Pentair quad DE 80. Pentair 400 K natural gas heater. My plan is to use the Pentair load center for automation and power. All valves will be Jandy brand. My plumbing consists of two main drains, 2 wall skimmers plumbed with 2 1/2 inch schedule 40 PVC. Each having their own pipe back to the equipment pad. There will be three wall returns plumbed with 2 inch schedule 40 PVC each on their own pipe back to the pad. There will be a rather large water feature having its own VS pump as well as 3 inch suction line to a 32 inch wall-mounted suction port. The waterfall return will be plumbed with all 2-1/2 inch schedule 40 pvc. The Sit-n-step has 4 jets with 2 1/2 inch schedule 40. And providing the light at night is 2 Pentair Intellibrite 5G color LeD lights housed in stainless steel niches. Please review my plumbing diagram. Thank you to all that have made this forum possible and provided feedback so others may learn.
