Answer
Mar 26, 2026 - 01:54 PM
- Flow rate is critical – The RJ system requires a minimum flow rate to operate correctly. Many above ground pool pumps are smaller, so you’ll want to confirm the pump can provide enough flow to activate the flow switch consistently.
- Plumbing size and setup – The RJ units are designed for standard 1.5”–2” plumbing. If your above ground pool uses smaller hoses (like 1.25”), you may need adapters and should ensure there are no restrictions that would reduce flow.
- Proper installation location – The cell and flow switch should be installed on the return line, after the pump and filter, just like with an in-ground setup.
- Electrical requirements – The RJ system must be connected to a proper power source (typically 110V or 220V depending on the model), so make sure your setup can support that safely.
- Oversizing is okay – In many above ground applications, the RJ unit may be larger than needed for the pool size. This is fine and can actually help extend the life of the cell, since it won’t need to run at 100% output all the time.
As long as these factors are accounted for, the RJ system can be a great option for above ground pools.
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