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Pre-Construction Services (PCS)

Cleansol PCS reviews project drawings and specifications before mobilization to design the cleaning circuits, calculate chemistry volumes, project the schedule and crew requirements, and surface scope inputs that need resolution early.

Cleansol PCS process schematic: clean and degrease, passivation, and rinse stages with water supply, compressed air, cooler, circulation pump, and drain — drawing PCS-001
alt: Engineering P&ID drawings and project documents spread on a construction planning table

Why This Matters

Scope problems found at mobilization cost more than scope problems found before it

Circuit configuration, chemistry volume, utility availability, waste disposal approval, specification gaps and coordination with the mechanical trade are all issues that can hold up a cleaning scope or force a change order when discovered during execution.

PCS surfaces those questions from the drawings, while there is still time to resolve them without schedule impact. The output is a defined scope, a volume and manpower basis, and a list of what is still open.

What PCS Covers

  • Circuit design: how the system is divided into treatable circuits and where temporary connections are needed
  • Volume calculations: system volume per circuit and the resulting chemistry and rinse water demand
  • Schedule projections: duration per circuit and the sequence against mechanical completion
  • Manpower requirements: crew size and shift structure for the projected sequence
  • Applicable specification sections and standards
  • Chemistry compatibility with the metallurgy and the system configuration
  • Utility requirements, water source and waste disposal path
  • Documentation and turnover format

Collaborative Alignment

One scope basis shared by the CM, the mechanical contractor and Cleansol

Most cleaning scope disputes come from three parties working off three different assumptions about what is included, when it happens and who provides what. PCS produces a single documented basis before the subcontract is issued.

Construction Manager

Knows the duration and the sequence

Circuit-level duration and crew projections let the CM place the cleaning scope in the schedule instead of holding an undefined block for it.

Mechanical Contractor

Knows what to install and when

Temporary connection points, isolation requirements and system readiness milestones are identified early enough to be built into the mechanical scope rather than added later.

Cleansol

Knows the volumes and the constraints

Chemistry volume, utility demand and waste quantity are calculated from the drawings, so mobilization is sized to the actual system rather than to an estimate.

Deliverables

What you get from a PCS review

Scope identification memo

Which systems require cleaning, passivation or other Cleansol services, based on the drawings and the specification.

Circuit and volume basis

Proposed circuit breakdown with calculated system volume, chemistry demand and rinse water demand per circuit.

Schedule and manpower projection

Projected duration and crew requirement per circuit, sequenced against the mechanical completion milestones.

Open items list

Inputs needed from engineering, the owner or the mechanical trade before a firm quote or schedule can be issued.

Budget estimate or firm quote

Budget range for early-stage planning, or a firm quote when the scope is sufficiently defined.

Information That Helps the Review

  • P&IDs or plans showing the systems in scope
  • Specification sections governing cleaning, passivation or related scopes
  • System list with pipe sizes, lengths and materials if available
  • Acceptance criteria and any required test methods
  • Project schedule milestones for the cleaning window
  • Utilities available at the site during the execution window

Early Review Is Better Than Late Review

The more complete the drawings, the more complete the volume and schedule basis. Cleansol can work from preliminary documents as long as the scope boundaries and the applicable specifications are clear. A partial review with open items is more useful than waiting for issued-for-construction drawings.

Who Submits for a Review

Three entry points

General Contractor

Project is in design or early construction

  1. Send the P&IDs and the specification
  2. Cleansol returns the circuit basis, volumes, duration and open items
  3. Review the scope with engineering before issuing the subcontract
Owner or Engineering

Specification is being written or reviewed

  1. Send the draft specification and system list
  2. Cleansol comments on scope definition, chemistry limits and documentation requirements
  3. Revise the specification before it goes to bid
Project Manager

Construction is underway, scope not yet defined

  1. Send whatever drawings are available along with the schedule window
  2. Cleansol identifies the scope and the inputs still needed
  3. Develop the full basis as drawings and documents become available

Project Experience

PCS on every Cleansol project

IndustryBiotechnology
RegionSoutheast
PhaseNew construction

Circuit design and volume basis from P&IDs ahead of mechanical turnover

Review of project P&IDs to divide the systems into treatable circuits, calculate volume and chemistry demand per circuit, and develop the execution sequence around the mechanical completion schedule. Open items resolved with the engineering team before mobilization.

IndustryPharmaceutical
RegionMid-Atlantic
PhaseRenovation

Specification review for renovation of operating utility system

Review of the draft specification for cleaning and passivation of a modified purified water distribution system. Comments on chemistry limits, temporary connection requirements and documentation format. Specification revised before bid issuance.

Next Step

Ready to send drawings for a review?

Upload your drawings and specification sections through the project inquiry form, or email them directly. Include any schedule constraints or open questions. Cleansol will respond with a scope memo and open items list.

Drawings can also be sent to service@cleansol.us. We review project inquiries promptly and follow up as quickly as your project timeline allows.

919.803.7507 Project Response Line