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Hydraulic Set-Up
Hydraulic Set-Up
Plumbing Requirements
It is important that the pool and spa plumbing system be in accordance with local codes and the
Recommended Hydraulic Schematics (page 7). Before starting, please review the diagrams
and the following recommended guidelines:
1. The spa should be at or above the level of the pool. If the spa is attached to the pool, provide a
dam between the two bodies of water to allow the spa to overflow into the pool. If the spa is not
attached to the pool, an overflow, sufficient in size to carry a full pump-flow, must be installed
at the water level in the spa.
2. Plumb a three-port Intake Valve on the suction-side of the filter pump, so that the centre port
of the valve is connected to the pump inlet. Connect the spa suction to one side of the Intake
Valve,and the pool suction to the other side.
3. Plumb a three-port Return Valve on the return-side of the heater, so that the return water will
enter the valve through the centre port. Connect the spa return to one side of Return Valve, and
the pool return to the other side.
4. If required, install a spa makeup line (consisting of a manual gate or ball valve, for elevated
spas install a check valve) to bypass the pool return line. This will enable some of the chem-
ically balanced water from the pool to cycle through the spa. The manual valve will allow the
amount of bypass to be adjusted.
5. If the spa is to be constructed in concrete, special provision should be made at this time for the
installation of the Spa-Side remote control. Select a convenient location in the deck or above
water level in the spa wall (where the Spa-Side remote will not be submerged by the spa wa-
ter), and install a 15 to 30cm length of 25mm PVC pipe to provide a receptacle for the Spa-Side
remote. The pipe should be level and protrude beyond the finished surface of the spa. It will be
cut back later at installation time. Reduce the pipe size down to 12mm or 20mm conduit, and
run it to the proposed Load/Power Centre location at the equipment pad. Use sweep elbows for
turns. The Spa-Side remote will not be installed until the spa construction is completed.
6. For systems which incorporate a skimmer, it is possible to balance the amount of suction be-
tween the skimmer and main drain for maintenance purposes. This is easily accomplished by
installing a manual three-port mixing valve at the suction line. Plumb one port to the skimmer
and the other to the main drain.
7. If a "non-booster pump" pressure-side pool cleaner is being used, plumb a manual three-port
valve between the filter pump and filter, with the third port plumbed to the pool cleaner line,
and install a motorized two-port Pool Cleaner Valve at this line. The motorized valve will auto-
matically open whenever the Control System activates the pool cleaner.
8. If a booster pump pool cleaner is being used, plumb the booster pump so that its suction-side
is connected to the pool return, after the heater, and as close to the ground as practical.
9. Plumb the solar feed and return lines between the filter and the heater. Install a three-port
valve at the feed line. Use a solar valve (model SOL-2T), to allow automatic draining of the pan-
els.
10. A solar booster pump should be used when the distance to the panels exceed 70m, or the pan-
els are elevated higher than 10m.
11. Glazed solar panels require a drain valve to allow draining of the panels. This prevents damage
from overheating water. Install a drain valve at the solar feed line and connect to the pool fill
line.
12. Salt chlorinators should be installed after the gas heater and all other equipment with a check
valve before to prevent back flow of highly concentrated chlorine into equipment.
Page 6
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