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Thank you for the guidance! I realized I might be misunderstanding the (2) x 3" pipe suggestion. My basic configuration would be a 4" line extending about 4-5ft from the pump (to outside of pool wall) and then splitting with a T. Each 2" inlet would branch off this 4" trunk. Do you...

thank you! Here is my CAD file for the elevations involved... I plan to install pumps and valves directly above the basin tank (as insurance). The suction line can be measured in inches vs feet. Distributing return jets from a 4" return manifold/trunk is easy to do. How many wall jets...

Thank you! I previously reviewed your posts with these tables to come up with my default design. I am assuming 1/4" of head is more than acceptable if I am not concerned with the weir as a water feature (instead as a cleaning mechanism and steady-state aesthetic feature from patio above)...

Building a DIY spillover pool in haste and hoping to minimize errors... Starting new tread with overview and request for general guidance. Project: Cast Concrete spillover pool on cliff edge. (not gunite/shotcrete) Offgrid solar electricity, no permitting, no one to save me from myself, etc...

Haha - too many things going on! Yes, the trapezoid is the pool. Finished the rebar last evening - it’s a bit bigger based on where I set the corners. About 1200sqft it appears. The open basement next to the rebar will house the tank. Exterior patio will cover this element. A pool house is...

After the pool is poured, we can remove the cliff overbuild and work our way out (which is why I needed to pour the pool now)

Thank you! I actually had all the rebar tied today and plan to pour the pool floor (slab) on Wednesday. I will put a single gravity drain in one corner to assist with manual draining. Pool is built on a cliff so I have lots of footer drain piping I will tie into, leading to a ale below. The...

I was planning to use 4" PVC to plumb the supply/pressure jets (as I have a lot on hand). I would prefer not to use floor drains and will provision means for draining the pool with a simple garbage pump. The gutter will not have drains as it will simply flow into the balance tank via gravity...

I am circling back after considering more details… I am preparing to pour the concrete for this exterior pool in the coming days (cast-place, not shot). One element I didn’t adequately consider was pressure-side piping. I had assumed 2”, but realize now larger PVC may be optimal. Here is a...

Thank you! The pool looks great! I don't have pics as it isn't built yet, and the final design is TBD. I'm building a ~2400g tank in an adjacent basement now (forming the walls this week). I expect the pool will be ~ 20-25k gallons, but a high surface area to volume ratio (thus my...

I am making it up as I go with 2 DIY poured -concrete spill over pools... I have already cast the concrete for a small indoor knife-edge pool, with gravity fed balance tank below. It went well, so I starting the concrete work for a similar exterior main pool. It occured to me that I have not...

This is very helpful - thank you! I've assumed a larger gutter profile as my linear gutter distance will be short, I need sufficient capacity to handle sudden displacement overflow. My surge tank will be a simple poured concrete box in a lower, adjacent cellar room. This is a bit of a...

The setup will be typical for a residential plunge pool - Tile on concrete for decking & walls. Normal dehumidification & HVAC etc. Even a short gutter can accommodate more water than will be instantly displaced by my entire family jumping in simultaneously (ignoring the rate at which the...

I'm in the process of building a small plunge pool in a new construction basement. Instead of a grated overflow gutter, I would like to utilize a knife-edge or slot overflow. I have not found any practical solution available for a small scale application (only commercial pool solutions). I...