Planning water and wastewater for
a mobile crib room.

01 — Onboard equipment

Start with what the unit carries.

The published Series 7 specifications list a 500 L fresh water tank with a stainless filler and 12 V pressure pump. The 500 L waste water tank has a full sender, an external flashing strobe alarm, an inspection port and a 50 mm cam-lock outlet. The layout also includes a stainless-steel kitchen sink and two toilets with hand basins.

Those tank sizes are a starting point for planning, not a guaranteed number of days between services. The selected layout, crew use and site conditions determine how quickly fresh water is consumed and wastewater accumulates. Confirm the final equipment and connection points for the unit being supplied.

02 — Crew demand

Work from shifts and activities, not a generic runtime.

Record how many people will use the crib room at once and how many shifts use it each day. List the activities that need water: handwashing, kitchen sink use, cleaning and amenities. A unit serving staggered meal breaks may have a different daily pattern from one used by the whole crew at the same time.

Use that brief to agree a filling and pump-out frequency with the people who will service the site. Allow for changes in crew numbers and project stages. If the facility is being planned as a different size or an accommodation-focused configuration, revisit the water and wastewater plan with the final layout rather than assuming the standard operating pattern applies.

03 — Supply and removal

Decide who will fill it and who will empty it.

Confirm whether the site will supply mains water, use the onboard fresh water tank or arrange water delivery. Identify where filling will occur and how a service vehicle or hose will reach the filler. For wastewater, confirm who will arrange removal, what equipment they will use with the 50 mm cam-lock outlet and where they can safely park while servicing.

The waste tank's full sender and external strobe alarm help identify when attention is needed, but the team still needs a routine for checking levels and booking service. Agree the arrangements before mobilisation, particularly when a project has no established water or wastewater services.

04 — Site position

Make service access part of the placement decision.

When choosing the standing area, leave access to the fresh water filler, waste outlet and inspection point. Check that service vehicles can reach the unit without blocking the work area or relying on access that will disappear as construction progresses. The location also needs practical routes to the kitchen and amenities for the crew.

The delivery and site-readiness checklist covers the wider route, standing area and handover questions. Share a current site plan or photos with Site Mate if access is tight or likely to change during the project.

05 — Handover and ownership

Give the checks a named owner.

At handover, have the site contact identify the filler, pump, waste outlet, inspection point and alarm. Record who will check the tanks, respond to the waste alarm, arrange water replenishment and book pump-out. Keep the relevant equipment instructions with the site's operating information.

If the crib room moves between work fronts, review the servicing plan at each new position. A change in crew size, access or operating hours can change the interval between fills and pump-outs even when the unit itself has not changed.

06 — Enquiry details

Send a useful water and wastewater brief.

Include your project location, expected crew numbers and shift pattern, whether mains water is available, how wastewater will be removed, the intended standing area and access for service vehicles. Add any unusual kitchen or amenity use. These details help Site Mate discuss whether the published Series 7 layout suits the job and what needs to be confirmed in the project quote.