1. Define the need before the product
List existing tanks, pumps, hoses, heads, valves and known problems. Separate an odour, leak or unreliable pump diagnosis from a desire for more capacity. Record access restrictions and how the crew currently fills, uses and services the system.
2. Compare the credible options
Compare repair and cleaning where appropriate, component replacement and a larger redesign. Discuss additional tank weight and mounting before ordering a larger tank. Confirm waste arrangements and operating requirements for your waters with the relevant authority.
3. Check the complete installation
- Have tank condition, mounting, inspection access and removal routes reviewed.
- Confirm hose and component suitability for their actual fluids and duties.
- Coordinate any hull fittings or valves with the yard and appropriate assessment.
- Check pump supply, access, drainage and the ability to isolate and maintain the installation.
4. What the all-in quote should cover
Compare written Australian dollar quotes for the same scope. Ask whether GST is included, how long pricing is valid and what remains an estimate.
- Tanks or equipment, suitable hoses, fittings and mounting.
- Access and reinstatement work, yard requirements and disposal.
- Testing, cleaning or commissioning as applicable, documentation and demonstration.
Equipment-only pricing is not an installed-cost estimate. Record unknown costs separately and agree approval for variations before work proceeds.
5. Check the handover, not just the invoice
Agree the acceptance and commissioning evidence before work starts. Use the installer’s appropriate test procedure; this is an owner’s handover checklist, not instructions to perform technical tests yourself.
- Have leak and operational checks completed and documented.
- Identify valves, isolation and normal operating arrangements.
- Collect the servicing instructions and confirm access to parts needing routine attention.
6. Budget for ongoing ownership
Follow the product-specific cleaning and service instructions. Log leaks or changes in performance and resolve their cause. Keep system labels and diagrams current.
Common buying mistakes
Do not add capacity without reviewing weight and support, bury service items behind new joinery, or treat a more powerful pump as a remedy for an undiagnosed system problem.
WORKED PLANNING EXAMPLE
Illustrative decision: a crew wants a larger freshwater tank. An access and installation review leads them to repair the existing system and measure actual consumption before approving new tank work.
THE OWNER’S FIELD GUIDE
Work through the decision in detail
Use these discussions before requesting a quote. Bring the yacht’s records, your survey findings and a clear description of the trips you want to make.
OWNER’S FIELD GUIDE · 01
Draw a simple map of what the yacht has
List tanks, filling points, pumps, hot-water equipment, outlets, filters and relevant waste systems. Mark what is known, what has been modified and what needs tracing by a professional. Separate drinking-water needs from other plumbing projects so the scope does not become ambiguous.
Describe the actual problem: unreliable supply, an unexplained smell, difficult access, leaks or insufficient usable water. Record when it occurs. A clear symptom history helps the specialist investigate the system instead of replacing whichever visible component seems most convenient.
OWNER’S FIELD GUIDE · 02
Investigate before covering everything with new equipment
Ask for the condition and accessibility of existing tanks, hoses, connections and supporting equipment to be assessed. Confirm which work can be scoped from inspection and which requires opening panels or removing components. Treat hidden damage or contamination concerns as investigation items.
If a survey has identified plumbing or hull-penetration concerns, keep those findings visible in the project brief. A new pump or tap does not resolve an unrelated defect. Agree which professional handles each part and how findings change the sequence and budget.
OWNER’S FIELD GUIDE · 03
Plan access as carefully as capacity
Ask how each service item will be reached after the boat is loaded for a trip. Check whether a pump, filter or tank fitting can be removed without dismantling unrelated cabinetry. The best time to resolve an access problem is before the replacement arrangement is built.
Include supports, protection, clear identification and finishing work in the installation scope. Have concealed routes documented. Future owners and technicians should be able to distinguish systems and locate isolation points without guessing from a collection of similar hoses.
OWNER’S FIELD GUIDE · 04
Coordinate with watermakers, hot water and electrical work
Explain any planned watermaker, engine or electrical changes to the plumbing specialist. Ask how the proposed equipment will interact with the retained system and which manufacturer requirements apply. Nominate a lead contractor for shared interfaces.
Keep potable-water quality and cleaning procedures within the advice for the actual system and products. Do not improvise chemical treatments from a generic internet recipe. Ask the installer to supply the relevant manufacturer instructions and identify any testing or further professional input needed.
OWNER’S FIELD GUIDE · 05
Ask for a quote that reaches the hidden parts
Compare tanks or pumps, associated fittings, access work, removal and disposal, installation, testing and restoration of finishes. Ask whether the price assumes existing parts can be reused and what happens if they cannot. Include the time and cost of making inaccessible areas available.
For a staged refit, write down what will remain old and why it is acceptable to retain it. Keep provisional items separate from fixed work. A clear boundary lets you compare proposals and prevents a cosmetic improvement from being mistaken for renewal of the entire system.
OWNER’S FIELD GUIDE · 06
Leave with a usable maintenance and isolation record
At handover, ask the professional to identify the systems, controls and isolation arrangements and explain the maintenance schedule for the installed components. Obtain appropriate commissioning records and the exact product manuals. Include the regular crew in the explanation.
During early use, record unexpected cycling, loss of supply, smells or visible moisture and report them promptly. Do not conceal a recurring symptom with repeated top-ups or adjustments. Keep the final system map with the yacht and update it whenever another contractor makes a change.
MAKE A SHORTLIST
Which scope fits your yacht?
Ask the relevant specialist which of these routes is credible for your yacht. Compare the whole result, including the parts you would retain.
PAUSE AND ASK FOR EVIDENCE
Red flags in the upgrade proposal
These are reasons to clarify the scope or seek specialist assessment. They do not establish that a particular product or contractor is unsuitable.
A new pump is presented as a renewed water system
Tanks, concealed routes and other components may be unchanged.
Your next step: Ask exactly what was replaced, review the records and investigate unresolved survey findings separately.
A leak is hidden by repeated top-ups
The symptom may remain unexplained while damage or disruption continues.
Your next step: Record the circumstances and ask the appropriate professional to locate and address the cause.
New equipment makes isolation or servicing inaccessible
An installation can improve appearance while making future work much harder.
Your next step: Review access with normal stores aboard and ask for service and removal routes to be demonstrated.
Several contractors change the same system without a final map
The owner can lose track of routes, isolation and retained components.
Your next step: Nominate a coordinator and obtain one final record of the completed arrangement.
ILLUSTRATIVE OWNER SCENARIO
How the decision changes in practice
A buyer sees a new pressure pump and assumes the water system has been renewed. The survey and a plumbing inspection show that the tank, concealed routes and access are separate issues. They commission a defined investigation, then compare targeted repairs with a larger refit. The completed record states exactly what was renewed and what remains, making the ownership budget much more realistic.
A fictional planning example, not a report about a particular yacht, owner or contractor.
6 QUESTIONS FOR THIS TOPIC
Tanks, pumps, hoses & heads: FAQs
Should I replace every hose at once?
Ask for an assessment of the actual systems and condition. A staged plan should identify retained parts, access constraints and any priority concerns rather than relying on a blanket rule.
Can I connect a watermaker to any tank?
Have the complete production, acceptance, storage and distribution arrangement assessed for the selected equipment. Do not improvise a connection from a photograph.
Why can a simple tank replacement cost so much?
Removal access, supports, fittings and restoration work may be significant. Ask for those items to be explained and priced rather than comparing tank prices alone.
What should my surveyor see afterwards?
Keep the documented scope, findings, photographs of concealed work and relevant professional records. Ask the surveyor what follow-up is appropriate for the original findings.
How can I keep a plumbing refit from disrupting other planned work?
Share the proposed routes and access needs with the electrical, engine or watermaker contractors involved. Assign responsibility for common interfaces and agree the sequence. Document changes before panels are closed so later trades can understand the finished arrangement.
What belongs on an owner’s water-system map?
Identify the relevant tanks, filling points, pumps, filters, outlets and isolation arrangements as confirmed by the professional. Distinguish separate systems clearly and include service-access notes. Update the map when equipment or routing changes.
YOUR INSTALLER BRIEF
Prepare your tanks, pumps, hoses & heads enquiry
Saved only in this browser. Print a copy before clearing browser data. These notes stay with this equipment guide on this device; nothing is sent to a contractor.