For the purpose of using the 153cm giant Mayan Stone Ball as a bubbling water-feature, a delivery reservoir of 10 litres must be installed at the apex which directs the water to the flow-out in an even manner over the full face of the ball.
The reservoir is fed through a 25ml delivery line and directs all the water through a 150mm hole at the top. A one-way valve in the delivery line is installed so that the reservoir remains full if the pump switches off. Ideally a timer is fitted to the pump, neither of which is supplied.
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