Describe both needs
Explain the present symptom and the future duty separately. A performance problem and a capacity increase are different engineering questions.
Compare service scopes
Cleaning, component renewal and a design review involve different work. Ask what will be inspected, replaced and verified in each option.
Use the equipment record
Share the nameplate, technical sheet, operating measurements and service history. Compare expected duty, shutdown requirements and verification alongside cost.
Prepare for the discussion
- Fluids, composition and relevant material requirements
- Flow rates and inlet/outlet temperatures on both circuits
- Design conditions and allowable pressure drop on each side
- Exact model, nameplate and current technical documents