Freshwater Hydrophore Pump · Pumps
Grundfos MQ 3-45 — Domestic freshwater on-demand pressure boosting.
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| Diaphragm tank pre-charge check | annually |
|---|---|
| Strainer cleaning | regularly, per company PMS |
| Seal/cartridge inspection | per the maker - this pump series is largely a sealed cartridge design with limited field-serviceable parts, so most work beyond the tank and sensor is replacement rather than overhaul |
Domestic freshwater systems are generally a low class-survey priority; where checked, it is usually for potable water system hygiene and cross-connection prevention rather than as classified machinery. Typical wear-limit figures have been left out here since this is a sealed cartridge-type unit without generic field-measurable clearances.
Estimated lifetime: Small domestic booster pumps of this type typically give several years of intermittent duty; the manufacturer does not commonly publish a running-hour rating for this series, so condition- or failure-based replacement is more realistic than a fixed hours figure
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