Water Storage Tank Compliance and WRAS Certification in the Philippines

What WRAS Certification Covers on a TankSmith Panel

WRAS certification confirms that a tank panel's material is safe for contact with potable water, covering leaching, taste, odor and microbial growth risk up to 65C. On a TankSmith installation, WRAS certification applies to the FRP, GRP, HDG steel and stainless steel 304/316 bolted panels that form the tank shell, the part of the system in direct contact with stored water. This is distinct from a general ISO 9001 quality management certificate, which covers how the manufacturing partner runs its factory, not the material itself. TankSmith panels carry both: WRAS certification for the potable water contact material, and ISO 9001 for the manufacturing partner's quality system. Panels are also backed by NSF-compliant liners where a liner is used, and TUV SUD testing on the finished panel. For a procurement team or facilities engineer specifying a system, the practical implication is that the certification should trace to the specific panel material and capacity being quoted, not to the brand in general. Ask for the WRAS certificate reference alongside the quotation before signing, and confirm it covers the material and capacity range in your bill of quantities. This matters most in verticals with a direct potable water use case: food manufacturing, hospital and clinic facilities, hotel and resort domestic water, and condominium or high-rise domestic supply.

Panel Materials, Capacity Range and Design Life

TankSmith supplies modular bolted panel tanks in four material options: FRP (fiberglass reinforced plastic) and GRP/SMC (sheet moulded compound), HDG (hot-dip galvanized) steel, and stainless steel in 304 or 316 grade. Capacity runs from 1,000 liters, suitable for a small commercial rooftop unit, up to 500,000 liters for an industrial fire reserve or process water application, in a single modular system. Because the panels are bolted rather than welded or cast, a tank can be sized to the exact capacity a site needs and can be expanded later by adding panel rows, without replacing the whole structure. Every FRP panel carries a 3-year warranty, and the system is designed for a 20 to 25 year service life under normal operating conditions. Material choice generally follows the application: FRP and GRP/SMC for most potable and general storage use where WRAS-certified material contact is the requirement, HDG steel where budget and moderate corrosion exposure allow, and stainless steel 304 or 316 where the site needs the highest corrosion resistance, such as coastal installations or process water with stricter purity requirements. Buyers should confirm which material grade a quotation is based on before comparing price across suppliers, since WRAS certification, warranty terms and design life are specific to the material and panel type actually supplied, not a blanket claim across the whole product line. For buyers comparing FRP against stainless or HDG steel for a specific application, the FRP versus stainless versus concrete comparison sets the materials side by side. For food manufacturing specifically, sizing and audit documentation are covered in depth on the potable water tank page for food processing plants.

Capacity does not change the certification. A 10 KL clinic tank and a 500 KL reservoir use the same certified panel material, assembled to a different footprint. TankSmith systems run from 1,000 liters to 500,000 liters per tank system, so a potable specification holds across the full range without switching to an uncertified material at larger sizes. Panels are produced under an ISO 9001 certified quality management system and are TUV SUD tested. TankSmith's panel systems carry a 3-year warranty with a 20 to 25 year design life, which should be confirmed in writing alongside the compliance documents. The practical point for a specifier is to name the material, not just the tank: writing WRAS-certified FRP or GRP bolted panel, potable, rated to 65C, NSF-compliant liner closes the specification before bids are opened.

The Compliance Document Pack to Request Before You Sign

Before signing a contract, request the document pack that lets your compliance or facilities team verify the claims independently rather than relying on marketing copy. For a TankSmith quotation this should include: the WRAS certificate reference for the specific panel material and capacity quoted, the NSF compliance documentation for any liner used in the system, the ISO 9001 certificate for the manufacturing partner's quality management system, and the TUV SUD test report for the finished panel. These documents form the audit trail that hospital, food manufacturing and PEZA or freeport facilities typically need to keep on file for their own regulatory inspections. It is reasonable to ask for this pack before the contract is signed, not after installation, since it is the basis for confirming that the material specified in the quotation is the material that will actually be delivered and installed. TankSmith's guide to DOH potable water tank standards in the Philippines covers how these certifications map to local health and safety requirements for facilities that store water for human consumption. Keep the document pack together with the installation handover records and warranty terms, since procurement and facilities teams are commonly asked to produce them during health, fire safety or PEZA compliance audits well after the original installation date.

Compliance Does Not Stop at the Tank: Pump and Control Systems

A compliant water storage tank is only half of a working system. Most of the installations TankSmith handles pair the tank with a pressure booster pump system, since stored water still needs to reach taps, fixtures and fire hose cabinets at usable pressure. TankSmith's booster pumps are vertical multistage centrifugal units in the CDL/CDLF series, ranging from 0.37 kW to 200 kW, built in stainless steel 304 for the wetted components. Pump duty and control are managed through VFD duplex control panels using Inovance variable frequency drives, rated IP54, with pressure feedback and automatic pump alternation so that duty cycles are shared evenly between pumps rather than running one pump to failure. Because TankSmith supplies, installs and commissions both the tank and the pump system under one contract, there is a single point of accountability for the mechanical and electrical scope, instead of splitting responsibility between a tank supplier and a separate pump contractor. This matters for compliance documentation too: a WRAS certificate for the tank panel does not say anything about pump reliability or electrical control, so a facilities team verifying a full system needs certification and commissioning records for both sides, tank and pump, not just the storage vessel. This is the same reasoning behind our hospital water infrastructure and booster pump installation service.

Where TankSmith Installs WRAS-Compliant Systems

TankSmith installs WRAS-compliant tank and pump systems nationwide across the Philippines, covering NCR, Luzon, Visayas and Mindanao, including PEZA and freeport zones such as SBMA, Clark, Cavite and Batangas. Typical installation timelines run 5 to 14 days for systems in the 20 KL to 500 KL range, depending on the capacity ordered and how ready the site's civil works are before the panel tank arrives. The verticals most likely to need documented WRAS compliance are commercial laundry operations sized to daily linen throughput, hotel and resort properties doing rooftop retrofits with integrated booster pumps, hospitals and clinics that need redundancy and a code-compliant fire reserve, food manufacturing sites requiring WRAS-compliant potable water contact (covered in more depth on the potable water tank page for food processing plants), warehouses and manufacturing plants specifying fire reserve or process water capacity, and condominium or high-rise buildings doing tight-access rooftop retrofits through sectional water tank supply in the Philippines. For any of these, the compliance document pack described above should be requested and reviewed alongside the technical specification, before the installation schedule is finalized, so there is no gap between what was quoted and what is actually delivered on site.

Frequently Asked Questions