Vertex
Solar™ Pool & Spa Heating System
-- Installation & User Manual
© Copyright 2019 Optex Solar Pty Ltd. All rights strictly reserved.
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23
“Over the Top”
Return Line Configuration
The return line can be an entanglement/drowning hazard if it is fixed inside the pool/spa. For
example a swimmer could get hair entangled in the return pipe and have trouble coming back
to the surface. Always remove the return line prior to pool/spa use. Only use loose line and
never fix line to any part of the pool/spa.
If any part of the return line plumbing or return outlet port is installed far below the
water line (greater than 500mm) then an extra Vertex vacuum beaker valve should be
installed on the return line to remove the extra pump height created.
You
CANNOT
rely on a person to remember to put back the return line after pool/spa use,
people may get distracted in the process or it may be pulled out by children (if the spa is
accessible) or persons/animals/events. Left out the system may flood electrical appliances at
your premise the next day. You
MUST
follow these two extra fail safes:
1) Install a ball valve on the return line and cable tie an electrical connector across it to
remind you to turn both OFF at the same time when turning OFF the system.
2) Only install an “over the top” return line in such a place that if it is pulled out with the
system ON and your pool/spa drains unattended it will drain safely.
If you cannot follow these extra fail safes we strongly recommend you invest in a standard
fixed eyelet port for the return, or sometimes the skimmer box will have a spare port.
