Resources & Guides
Resources & Guides
Everything we have learned about water, wastewater and pool treatment in the Philippines — written for the people who actually operate these systems. Articles are grouped into three topics so you can go straight to the one you need.
Browse by Topic
Three collections of articles
Water Treatment & SofteningHard water · softeners · filtration media · purification
Why Philippine water causes scale, stains and equipment failure — and what actually fixes it.
- Cebu's Hard Water Problem: What's Really Causing Those White Stains
- How Hard Water Damages Your Washing Machine
- The Hidden Reason Your Water Heater Keeps Breaking Down
- Hard Water and Dry Skin: The Connection Nobody Talks About
- Manila Water Now Uses AFM® Activated Filter Media
Swimming PoolsAlgae · chlorine · clarity · maintenance cost
Thirty articles on why pools go green or cloudy, and how to keep them clear with less chemical.
- My Pool Is Green. What To Do Now?
- The Number 1 Reason Pool Water Becomes Cloudy
- Why Algae Stops Responding to Chlorine and Algaecides
- How Can I Cut Down Pool Maintenance Expenses?
- The Pros and Cons of Saltwater Pools
Wastewater & STP Field NotesSewage treatment · compliance · operations
Notes from designing, building and fixing sewage treatment plants on real Philippine sites. Sixty-four articles and counting — the pick of them is listed in full below.
- Looking for a Reliable Wastewater Treatment Provider in Cebu?
- Four Questions I Would Ask Before Signing for a Sewage Treatment Plant
- What DAO 2021-19 Changed, and Why Our Designs Did Not
- Ammonia and Phosphate Are the Two That Fail
- The Cheaper Quotation Was Not the Cheaper Plant
Wastewater Field Notes
Design, cost and compliance, written up job by job
Building the Plant Is the Easy PartWhy the drawing, not the construction, decides what a plant costs to own.
Our Quotation Was Six PagesHow long a quote should be for the size of the job in front of it.
They Sent Us a Finished DrawingThe six-section answer we send back to a design somebody else has drawn.
We Were Not the CheapestReading a competing quotation line by line before deciding what it means.
The Design Fee Barely MovedFifty-fold difference in plant size, about 1.5 times the fee. Why.
Where We Stop Giving It AwayWhat we hand over free, and what starts at the sealed drawing set.
The Drawing Said BOD 300Designing at three wastewater strengths when nobody can source the number.
We Ask for the Influent ResultWhat we do when the one number that sizes the plant does not exist.
Three Ways to Price the ConcreteWe build it, the owner builds it, or his contractor builds it under supervision.
Six Tanks, Six Sets of WallsShared cross walls cut the footprint of a six-chamber plant by a third.
The Tank That Treats NothingHow we size equalisation from a building's operating pattern, not a percentage.
Which Screen Were We Supplying?Three separations at the front end, and why we pour them rather than buy them.
We Stopped Redrawing the ClarifierOne standard underground detail, and the two internals we removed.
Energised Is Not CommissionedWhat goes in the contract about the weeks between those two dates.
Nobody Had Cited Them YetWhat to establish, and what to put in writing, after an inspection.
A Solved Problem Is Not a RiskHow we disclose risk in a quotation without inventing a liability.
He Wanted the Cleanest WaterWhy we design to the end goal and not one stage further.
Reuse the Water For What?The reuse ladder, and what each rung costs to build and to run.
The Same Building, Priced Three WaysThe technology was not what decided it. Here is what did.
No Enzymes in the BottleWhy our grease trap conditioner leaves them out, and the culture carries them.
DENR Discharge StandardsReference: the limits under DAO 2016-08 and DAO 2021-19, class by class.
Parameters by IndustryReference: which tests DENR actually holds your sector to.
Free Tools
Calculators and estimators
STP Instant Price EstimatorAn indicative price for a DENR-compliant sewage treatment plant in seconds.
Wastewater Design GeneratorGenerate a treatment process design for your facility.
Pool Volume & Dosage CalculatorPool volume and the correct dose for each chemical.
Wastewater Computation CalculatorFlow and loading computations for treatment sizing.
Service Areas
Explore what we do
Water TreatmentFiltration media, iron removal, softening, refilling stations.
Wastewater TreatmentSewage treatment plant design, build and retrofit.
Wastewater Treatment in CebuSewage treatment plants and service across Cebu and the Visayas.
Commercial Kitchen SofteningTaking the hardness out before it becomes scale and grease trap crust.
Swimming PoolsPool filtration, chemistry and algae control.
Aquaria & AquacultureHatchery, RAS and display tank filtration.
Completed ProjectsOver two hundred systems delivered across the Philippines.
Company ProfileWho we are, what we build, and how to reach us.
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