Stop writing pool specs that name products instead of performance

What Belongs in a Commercial Pool Specification? Unpacking the Myths

Your consultant hands over a pool spec that runs half a page. Tile type, coping, pump brand, done. Six bidders price it, all six come back with different numbers, and none of them are wrong, because the spec never told them what the pool has to do.

A commercial pool specification defines performance, not products. Naming a pump brand tells a bidder nothing about whether the pool clears on a busy Sunday. Naming a turnover rate does.

The Difference Between a Product Spec and a Performance Spec

A product spec lists what to buy. A performance spec states what the finished system must achieve, then lets the specialist select equipment that meets it. On pool packages the second approach protects you, because it makes the bidder responsible for the outcome rather than for matching a shopping list.

Write "sand filtration, brand X" and you get brand X, sized however the bidder likes. Write "turnover rate of the full pool volume within a stated period at design bathing load" and every bid becomes comparable.

The Clauses Most Pool Specs Are Missing

Four items go missing more often than any others: the design bathing load, the turnover rate, the waterproofing system tied to the structural interface, and service clearance around equipment. Each omission transfers risk from the contractor to you.

Which of those four does your current spec name?

Common Misconceptions: The Truth Behind Pool Package Scope

The belief that costs developers the most: the pool is a finishing trade that can be procured late. Award it late and the structural slab is already cast, the equipment room has been squeezed for leasable area, and the waterproofing interface is now a variation order.

Is the Pool Really a Late-Stage Trade?

No. The pool imposes structural loads, drainage requirements, and MEPF tie-ins that belong in the design phase. Bringing the specialist in at design costs you nothing on paper and saves the variation orders that arrive once concrete has cured.

What to Verify Before You Issue the Package

• The equipment room location and its clearance dimensions, agreed with the MEP consultant
• The waterproofing interface between pool shell and structural slab, drawn rather than described
• Drainage and overflow routing, including where backwash water goes

Settle those three on drawings and most pool variation orders disappear before they exist.

How to Compare Bids Against the Same Standard

Require every bidder to submit the hydraulic calculation, the reinforcement schedule, and the waterproofing specification. Bids arriving without them are incomplete, and treating them as comparable is how a package gets awarded to whoever left the most out.

Your protection is the submittal list, and you write it.

The Financial Impact of a Weak Pool Specification

A thin spec does not save money. It moves the cost from the tender stage, where you control it, to the construction stage, where the contractor does.

• Variation orders during construction carry no competitive pressure, because the contractor is already mobilised on site
• An undersized filtration system becomes a permanent operating cost that the property management company inherits
• Waterproofing failures on elevated pools damage the levels below, so the repair scope grows beyond the pool itself

Your Next Move as a Project Team

1. Add design bathing load and turnover rate to the pool section of the spec, and require the calculation as a submittal.
2. Draw the waterproofing interface at the slab rather than describing it in a clause.
3. Fix the equipment room footprint in the coordination model before anyone value-engineers it.

Awarding and Coordinating the Pool Package: What You Need to Know

The package is out to tender. From here your exposure is coordination, submittals, and commissioning.

Why a Pool Specialist Belongs in Coordination Meetings

Include the pool contractor in MEP coordination for three reasons. They identify tie-in conflicts before the services are installed. They flag structural penetrations while the rebar is still being fixed. And they size the equipment room against real service access rather than accepting whatever space survives coordination.

One more clause worth writing in: who owns the commissioning data. Turnover rate, head loss calculations, and pressure test results belong to the development, not to the contractor who produced them. Without that clause your facilities team inherits a system nobody can describe, and the first maintenance contractor has to re-measure everything before touching it. That is money spent twice for information you already paid for once.

Warning Signs in a Bid

• No hydraulic calculation accompanies the tender return
• The reinforcement schedule matches a residential pool
• Waterproofing appears under finishes rather than structure
• The programme shows no distinct curing period

Commissioning Checklist

• Achieved turnover rate recorded against the design figure
• Pressure test certificates for all lines, dated before backfilling
• As-built drawings of plumbing and equipment room
• Operating instructions handed to the property management team
• Structural warranty naming period and exclusions

Specify performance, demand the calculations, and the pool stops being the package that surprises you.

This article is part of our guide to swimming pool construction in the Philippines. Operators inherit whatever you specify, so read what compliance asks of an amenity pool. See also: what a commercial pool actually costs.