What Size Water Tank Does a Philippine Hospital Need

Hospital water tank sizing in the Philippines starts with a per-bed-per-day demand figure, not a fixed dimension. The commonly used planning number is roughly 500 liters (0.5 KL) of domestic water per bed per day. Applied across a facility, this works out to roughly 25 to 50 KL of domestic storage for a 50-bed hospital and 50 to 100 KL for a 100-bed hospital. This figure covers domestic use only: patient care, sanitation, kitchen, and laundry demand. It does not include fire reserve, which is calculated and stored as a separate volume sized to fire code requirements rather than bed count. In practice, the exact number a hospital settles on comes out of a DOH-approved water balance study that accounts for the facility's actual bed count, occupancy assumptions, and any additional processes (dialysis, central sterile supply, laundry) that add to daily draw. JOHOB Hardware Trading sizes tanks against that study rather than a generic per-bed multiplier alone, then supplies modular FRP panel tanks under the TankSmith sister brand, assembled on site to match the calculated capacity and the hospital's available footprint. Because the panels are modular, the final tank is not limited to standard off-the-shelf sizes, it is built up from panel sections to hit the exact KL figure the water balance study calls for, whether that lands at 30 KL or 180 KL.

A Level 1, 2, or 3 hospital license under DOH classification does not correspond to one standard water tank dimension. Hospital level governs the services and staffing a facility must provide, not its water storage volume. Two Level 2 hospitals with different bed counts and different site footprints will need different tank capacities even though they carry the same license level. What actually drives the number is bed count, occupancy, and any additional water-intensive services on site, run through a water balance study, then matched against the physical space available for the tank. This is why JOHOB supplies modular FRP panel tanks across a 25 to 200+ KL range rather than a small set of fixed sizes. Panels are assembled to the site's actual footprint and required capacity, so a hospital with a tight rooftop location and one with an open ground-level pad can both reach the same target KL figure using different tank shapes and layouts. Buyers evaluating quotes should ask for the capacity figure tied to their own water balance study and bed count, not a number borrowed from another facility's license level, since two hospitals at the same DOH level can legitimately need very different tank sizes.

Hospital water storage carries a higher bar than general commercial use because the water directly supports patient care. Tank panels supplied for hospital projects are WRAS-certified, a standard specifically for materials in contact with potable water, and are produced by an ISO 9001 certified partner factory, meaning the manufacturing process itself is under a documented quality management system rather than ad hoc production. Panels are also TUV SUD tested, an independent third-party verification step rather than a self-declared spec. Associated electrical components carry CE marking, and where pressure vessels are part of the system (such as pressurized surge or hydropneumatic tanks feeding the distribution network), ASME certification applies. None of these certifications are unique to hospitals, they are the same certifications JOHOB applies across its water storage supply, but they matter more in a hospital context because procurement teams and infection control committees will ask for them by name during vendor evaluation. A hospital buyer should request the WRAS certificate, the ISO 9001 certificate for the manufacturing facility, and the TUV SUD test report as part of the quotation package, not after the tank has already been ordered.

A correctly sized tank still needs a pumping and electrical system matched to the hospital's actual demand curve, since patient care areas cannot tolerate pressure drops during peak draw. JOHOB supplies booster, transfer, and submersible pumps sized against the same water balance study used for the tank, paired with VFD duplex panels so two pumps can alternate duty and provide redundancy if one unit needs servicing. Electrical panels for these systems, including VFD, SDE, star-delta, and MCC configurations, are built around Inovance and Chutian components. All electrical panels carry CE marking. For a hospital, the practical reason to size pump and panel together with the tank rather than as a separate purchase is redundancy: a duplex VFD panel keeps water pressure stable to critical areas like operating rooms and dialysis units even if one pump is offline for maintenance, which a single-pump setup cannot guarantee. This is specified alongside the tank quotation rather than left for the hospital's electrical contractor to size independently after the tank is already installed, since pump and tank capacity need to be matched to the same demand figure.

Fire reserve water for a hospital is calculated and stored separately from the domestic supply figure covered above. The 500-liter-per-bed-per-day domestic estimate has no bearing on fire reserve volume, which is instead sized to fire code requirements tied to the building's fire protection system design, such as sprinkler coverage and standpipe demand. JOHOB supplies fire reserve tanks and sprinkler kits as part of its fire protection product line, and on hospital projects these are quoted and installed as a distinct tank from the domestic storage tank, not a shared volume split between the two uses. Keeping the two separate matters operationally as much as it matters for code compliance: a shared tank risks the domestic reserve being drawn down by a fire event, or fire reserve being depleted by normal daily use, either of which defeats the purpose of holding a dedicated reserve. Hospitals evaluating a water storage quotation should confirm the domestic and fire volumes are stated and supplied as two separate tanks with their own capacity figures, not a single combined number that has to be split after the fact.

JOHOB Hardware Trading supplies hospital water storage and pumping systems nationwide across NCR, Luzon, Visayas, and Mindanao, including PEZA, SBMA, and Clark locations. VAT treatment depends on the buyer's registration status: standard 12% VAT applies to VAT-registered buyers, while PEZA and SBMA locators and exporters qualify for zero-VAT treatment on the purchase. Lead times run 21 to 35 days for ex-stock items and 45 to 90 days for made-to-order configurations, which for hospital projects typically means the tank panels and standard pump models fall in the shorter window while custom electrical panel configurations or non-standard tank capacities fall in the longer one. JOHOB responds to RFQs within 1 business day, which matters for hospital procurement timelines that are often tied to a facility license renewal or an expansion opening date. Pricing is quote-based rather than published, since final cost depends on the water balance study result, site accessibility for panel delivery and assembly, and whether PEZA or SBMA zero-VAT treatment applies to the specific buyer, so hospital procurement teams should submit bed count, site location, and DOH level with their RFQ to get an accurate lead time and quote on the first pass.