Can a Commercial Laundry Facility Use a Grey Water System in the Philippines

Grey water in a laundry setting is the wash and rinse water discharged from washer-extractors, excluding any stream that carries sewage or heavily contaminated waste, which is classified as black water and cannot be reused without full treatment. In most commercial laundry lines, the final rinse cycles carry the lowest contaminant load and are the most practical stream to capture for reuse, since earlier wash cycles carry more detergent and soil. Before any reuse line is designed, a facility needs to separate these streams at the washer-extractor discharge, which means the piping layout has to account for grey water collection from day one rather than retrofitting it later. JOHOB's role in this picture is the physical infrastructure: supplying the storage tank that holds the collected grey water, the pump that moves it to its reuse point, and the piping and valves that keep that line physically separate from the facility's potable water supply. We do not supply water treatment or filtration chemistry for grey water, so any disinfection or filtration stage before reuse should be scoped separately with a water treatment specialist. Getting the stream separation and storage sizing right at the design stage is what determines whether a reuse line is worth installing at all, and it is the first question we ask on any RFQ for this kind of system.

A grey water reuse line sits alongside, not inside, a laundry's main water supply system. The main system still needs to be sized to actual wash-line demand using booster, transfer or submersible pumps with VFD duplex control, and the reuse line is an additional, physically separate loop that captures a portion of that water for a second, non-potable use. In practice this means two storage points: the primary makeup water tank that feeds the washer-extractors, and a second collection tank that holds reclaimed grey water before it is pumped out to its reuse point, such as floor washdown or landscape irrigation. Both tanks and both pump sets need their own sizing calculation, since the reuse tank's inflow depends on wash cycle timing and extractor discharge rate, not on the facility's total fresh water demand. JOHOB sizes both sides of this layout as part of the same quote: the fresh water supply system and the grey water collection and reuse system, using the same booster, transfer and VFD duplex panel product lines for both. Keeping the two systems on separate, clearly labeled piping runs also keeps the facility compliant with the backflow-prevention and cross-connection control principle that Philippine plumbing code applies to any non-potable reuse line, and it is simpler to inspect and maintain than a shared line would be.

A grey water collection tank has different demands than a potable water tank: it needs to handle water carrying residual lint, detergent and soil without that buildup degrading the tank material over time. JOHOB supplies FRP, GRP, HDG and stainless steel modular tanks through our sister brand TankSmith, and any of these four materials can be specified for a grey water collection tank depending on the facility's budget and maintenance plan. FRP and GRP tanks are the more common choice for a reuse collection tank because they resist the mild corrosivity of detergent residue without the higher material cost of stainless steel, while stainless steel is worth specifying where the facility wants the longest practical service life and the lowest long-term maintenance. All tank panels we supply are WRAS-certified, and the partner factories producing them operate under ISO 9001 quality management systems, with ASME compliance applied where the installation calls for a pressure vessel rather than an open storage tank. Sizing the collection tank correctly requires knowing the facility's actual extractor discharge volume and cycle frequency, which is why we ask for wash-line throughput figures on the RFQ rather than sizing off floor area or linen volume alone. Lead time on tanks runs 21 to 35 days ex-stock for standard sizes or 45 to 90 days for made-to-order configurations.

Moving collected grey water from its storage tank to its reuse point, whether that is a washdown hose bib, a cooling tower makeup line or an irrigation header, needs its own pump set sized to that specific demand, separate from the pumps feeding the washer-extractors. JOHOB supplies booster, transfer and submersible pumps for this role, paired with VFD duplex panels where the reuse demand varies through the day, since duplex control lets one pump run at partial load during low-demand hours and brings a second unit online automatically when demand spikes. This is the same pump and panel product line we specify for primary laundry water supply, so a facility adding a grey water reuse line to an existing JOHOB-supplied system can often match panel types and simplify spare parts and maintenance training for its own staff. All electrical panels we supply carry CE marking, and the pumps themselves are sourced through ISO 9001 certified partner factories with TUV SUD testing on the panel side. As with the storage tank, correct pump sizing depends on knowing the actual reuse demand (flow rate and head requirement at the discharge point), not just the volume of grey water available, so we ask for both figures before quoting. Standard lead times apply here as well: 21 to 35 days ex-stock, 45 to 90 days for made-to-order pump and panel configurations, with RFQ response within 1 business day.

Reusing grey water in a commercial facility is a plumbing design question before it is an equipment question. The core principle that applies under Philippine plumbing code is cross-connection control: a non-potable reuse line must be physically separate from the potable supply, clearly labeled, and designed so there is no possibility of grey water backflowing into the drinking water system. Beyond that separation principle, the specific permitting and inspection requirements for a grey water reuse line can vary by local government unit and by what the reclaimed water is ultimately used for, so we recommend confirming the exact requirements with your facility's plumbing engineer or the local building official before finalizing a layout. JOHOB's scope on a grey water project is supplying and sizing the tank, pump and piping hardware correctly to the separation principle above. We do not provide code compliance certification or treatment design services, and any required water quality testing or treatment stage for the reclaimed water should be scoped with a specialist in that area. For PEZA or SBMA-registered facilities, equipment on this kind of system qualifies for Zero-VAT billing as an exporter or locator, versus the standard 12% VAT that applies to other VAT-registered buyers.

JOHOB supplies grey water reuse infrastructure, tanks, pumps, VFD panels and piping, nationwide across NCR, Luzon, Visayas, Mindanao and PEZA/SBMA zones. Tank panels are WRAS-certified, electrical panels carry CE marking and are TUV SUD tested, pressure vessel components meet ASME requirements where applicable, and all equipment is sourced through ISO 9001 certified partner factories. Pricing is quote-based since system sizing depends on each facility's specific wash-line volume and reuse demand, and we do not publish fixed price lists for this reason. Standard lead times are 21 to 35 days ex-stock for in-stock configurations and 45 to 90 days for made-to-order tanks or panels. We respond to RFQs within 1 business day. Standard VAT-registered buyers are billed at 12% VAT, while PEZA or SBMA-registered locators and exporters qualify for Zero-VAT billing. To get an accurate quote, provide your facility's washer-extractor discharge volume, cycle frequency, and the intended reuse point (washdown, irrigation, cooling tower makeup, or other) so the tank and pump set can be sized to actual demand rather than a generic assumption.