Approximately 20-30% water pressure is lost for most pumps, and up to 40% if trying to push pumps that are maxing out the capabilities of the filter (ex. AquaForce 5200). We suggest using a Y-valve when using larger pumps. The Y-valve can be adjusted to send a portion of the water through the filter, and the other portion through a secondary pipe back into the water feature. This reduces the pressure on the system and allows the pump to push more water. The largest UltraKlean 3500 Filtration Kit automatically includes a Y-valve with it for this purpose.
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