High-Head pumps that speak intelliflo?

[mas985]

I assumed 35' runs plus typical fittings:

1/2 Filter = 0.0005
Heater = 0.002
Return = 35' 2" pipe + fittings (5 90s & 7 sweeps) + check valve + 2x3 way valve = 0.00261
1.5" Vinyl 15' = 0.0012
Apparatus = 0.032 (As currently built, includes transitions)
Apparatus = 0.00093 (w/2" bottom pipe)

 

[JamesW]

If we model the return as y=0.004X^2, we get the below graph.

 

[JamesW]

At y=0.007X^2, we get the below graph. (Y-axis is psi) (X-axis is Flow in GPM).

y=0.007X^2, X from 0 to 60 - Wolfram|Alpha

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40 gpm is 11 psi.

 

[workedonthousandsofpools]

In the pic of the little girl playing with it, there is a sign behind her that says "to build a fountain you MUST start with two spouts of the same color" hard to tell how many spouts there are, other than the two yellow ones, and two purple ones that can be seen in pic.

I would try capping off two of the 3 ways on your square, then put risers in the other two and see if does anything, she also has clear sections of pipe which lets them watch the water move as they connect them i guess.

Part of this toys design has something to do with multiple spouts that are color coded in pairs.

 

[JamesW]

For a pressure relief, you could use an open 1.5" pipe going straight up about 5 feet.

This will limit the pressure to 5 feet of head (2.2 psi) at the apparatus.

In any case, be careful not to create a situation where any significant pressure could build up and cause something to come apart with force.

Unless it is professionally designed and supervised, there is a risk of creating an unsafe apparatus.