Calculators

The River Murray Boat Owners Association (RMBOA) has developed a number of calculators that all river users can use to plan voyages, estimate when black water (sewage) holding tanks need to be emptied and estimate the amount of grey water that your vessel produces.

If these calculators are useful and you are not a member of the RMBOA, please read our membership page and consider joining the Association to allow the development of more tools.

RMBOA River Murray Cruise Calculator

The RMBOA River Murray Cruise Calculator allows river users to estimate travelling times, fuel consumption and voyage costs for the lower 1000 km of the Murray River. If you know the fuel capacity, average travelling speed and average fuel consumption, this calculator will calculate the travelling time and fuel consumption between points along the river.

The calculator allows the entering of refuelling locations and will identify if the vessel is capable of travelling between refuelling locations based on distance and estimated fuel consumption.

Fuel Records

The RMBOA Fuel Records spreadsheet allows a river user to record their vessel's fuel use, distance travelled and time taken. The spread sheet then calculates the vessel's average speed and fuel consumption (litres per100km and litres per hour). The spreadsheet has two example entries that should be deleted before use. The white fields are entered by the use, while the grey fields are calculated. Requires either Microsoft Excel or Open Office Calc.

Calculate Black Water Holding Capacity

River vessels with permanent toilets have holding tanks where the toilet waste (black water) is stored before it is pumped out at a Waste Disposal Station of by a commercial contractor.

Using simple information such as the dimensions of the black water holding tanks, the average volume of a toilet flush, the average number of flushes per person per day and the number of people onboard, the black water calculator provides an estimate of how often the holding tank needs to be emptied.

Calculate Grey Water Holding Capacity

Grey water is the waste water generated on a vessel that is not black water (sewage). This includes washing up water, shower water, washing machine water, dishwater water and water from hand basins.

Using information such as the average amount of water used in washing up, the flow rate of the shower, the amount of water used by the washing machine and/or dishwasher and the number of people on-board, the grey water calculator estimates the amount of grey water produced by your vessel.

The calculator also calculates the size of the holding tank required to hold this grey water before it is pumped out at a Waste Disposal Station or filtered for return to the river.

This information may help river users to plan whether to store or process grey water when the regulations are changed in the future.

If you have "Tips and Tricks" of your own please e-mail (in any digital format) the Webmaster with your contribution.

For anything new on the RMBOA site click here

Disclaimer

Use of the information and data contained on the RMBOA pages is at your own risk. If you rely on the information on the RMBOA site you are responsible for independently ensuring its accuracy, currency or completeness. Some material on this site is contributed by RMBOA members and does not necessarily reflect the policy of the RMBOA. The RMBOA website includes links to other websites these are linked "as is" and the RMBOA:
· Does not necessarily sponsor, endorse or approve of any material on linked websites.
· Does not make offer any guarantees regarding the quality, accuracy, or suitability for any purpose any material on websites linked from or to the RMBOA site.

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