System Design; Important Technical Notice Regarding Multiple Skimmers - Paramount PCC2000 Manuel D'installation

System Design

Each pool layout and design is unique, however, certain guidelines suggest cleaning areas from 65 to 125 square feet. Pool shapes, location of
steps, and center of deep-end depth pools effect the location of each nozzle.
As of this time, we have found that one (1) rotating floor nozzle per 85 square feet in plaster pools surface area covers a majority of pools.
Less floor nozzles are required when steps are located outside the perimeter as opposed to inside the pool. Straight corner steps as opposed to
half moon steps placed in the middle require fewer nozzles. Free-form pools that change dramatically in width change nozzle requirements.

Important Technical Notice Regarding Multiple Skimmers

If more than one skimmer is designed in the pool, the PCC 2000 may create conditions where the main drain and skimmers are not as effective as
they would be if there were only one. This is particularly true with Paramount's ADR System with the active main drain.
When the pool incorporates a single pump design with up to a 2 hp (2-1/2 hp up-rated) pump and an in-floor system, the maximum flow of water
through the hydraulic system is only 60-75 gpm.
The optional Paramount VGb Compliant Debris Drains require only 35 gpm to operate properly. The remaining suction flow is through the
skimmer.
When a second skimmer is added, the flow then becomes reduced. having only 17-20 gpm over a skimmer is not effective. Traditionally,
consumers adjust the skimmers to effectively pull water and surface debris and thus reduce the suction upon the main drain.
We have found that with an in-floor system the best rule of thumb is "one skimmer and one main drain with
a one pump system."
Pools over 550 square feet, with one skimmer, are recommended to have a two-pump system.
because of the energy savings, faster clean up and less stringent equipment requirements, multiple
skimmers work fine with the 2-pump system.
The second pump may be plumbed to a single skimmer along with the filter pump, which supercharges the skimmers. The second pump may be
plumbed to a second skimmer. This design allows both skimmers
to separately draw a minimum 35 gpm and the main drain to effectively operate as designed.
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