How to Pump Out Your Boat

Pumping out your black-water tank – that’s where the toilets flush into – is easily the least glamorous thing about living on a boat.

Fortunately, it doesn’t have to be done very often. How often is safe? Our marina neighbours Fairy and Duncan do theirs every two or three weeks: “Duncan doesn’t believe in gauges,” says Fairy. (Duncan, for the record, was previously a yacht master.)

We inexperienced types, however, do have to rely on gauges. So when, a few days ago and exactly a month after the launch of our Dutch barge Karanja, her waste gauge indicated that the 1,000-litre tank was three-quarters full,  we reckoned the hour had come – especially as we were about to embark on a week-long cruise down the Thames.

Virgin pump-out

 

You'll be able to identify the pump-out hose by its strong resemblance to a coiled intestine, albeit a giant one
You’ll be able to identify the pump-out hose by its strong resemblance to a coiled intestine, albeit a giant one

Fortunately, we were able to observe neighbour David pumping out his barge, Elysian, just the day before, with the help of his neighbour, Andy. David (an ex-Army colonel) was quite comfortable with Roy being there, but seemed unsure that a lady should be witness to an operation with such an embarrassing potential for whiffiness.

Pump-out protocol

  1. Move your boat to the pump-out station.
  2. Get one or two coupons (depending on boat size) from the marina office – free for berth-holders, GBP15 for visitors.
  3. Insert nozzle of pump hose into your boat’s discharge outlet.
  4. Feed coupons into pump machine to start the pump.
  5. After suction has built up – it takes about a minute – open valve on pump machine.
  6. Observe exodus of shite through viewing panel at boat end of hose; when complete, push pause button on pump.
  7. If you like, use water-hose provided to run some rinsing water into the tank, then complete your pump-out.
  8. Now feed in a little water – just for a minute or two – to cover the bottom of your tank.
  9. Feel pleased and proud that your ducks are all in a row.
It's good to know that all your ducks are in a row
It’s good to know that all your ducks are in a row
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Verne Maree

Born and raised in Durban, South African Verne is a writer and editor. She and Roy met in Durban in 1992, got married four years later, and moved briefly to London in 2000 and then to Singapore a year later. After their 15 or 16 years on that amazing island, Roy retired in May 2016 from a long career in shipping. Now, instead of settling down and waiting to get old in just one place, we've devised a plan that includes exploring the waterways of France on our new boat, Karanja. And as Verne doesn't do winter, we'll spend the rest of the time between Singapore, South Africa, Australia and New Zealand - and whatever other interesting places beckon. Those round-the-world air-tickets look to be incredible value...

  1. chris jones

    I suppose thus the origin of the expression when going to the loo, “I’m just off to pump the bilges!”… jealous as hell, enjoy!

    Best, Jonesies

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